diff --git a/Objects/genobject.c b/Objects/genobject.c
index c3fa64b..af812c0 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -10,103 +10,103 @@
 static int
 gen_traverse(PyGenObject *gen, visitproc visit, void *arg)
 {
-	Py_VISIT((PyObject *)gen->gi_frame);
-	Py_VISIT(gen->gi_code);
-	return 0;
+    Py_VISIT((PyObject *)gen->gi_frame);
+    Py_VISIT(gen->gi_code);
+    return 0;
 }
 
 static void
 gen_dealloc(PyGenObject *gen)
 {
-	PyObject *self = (PyObject *) gen;
+    PyObject *self = (PyObject *) gen;
 
-	_PyObject_GC_UNTRACK(gen);
+    _PyObject_GC_UNTRACK(gen);
 
-	if (gen->gi_weakreflist != NULL)
-		PyObject_ClearWeakRefs(self);
+    if (gen->gi_weakreflist != NULL)
+        PyObject_ClearWeakRefs(self);
 
-	_PyObject_GC_TRACK(self);
+    _PyObject_GC_TRACK(self);
 
-	if (gen->gi_frame != NULL && gen->gi_frame->f_stacktop != NULL) {
-		/* Generator is paused, so we need to close */
-		Py_TYPE(gen)->tp_del(self);
-		if (self->ob_refcnt > 0)
-			return;		/* resurrected.  :( */
-	}
+    if (gen->gi_frame != NULL && gen->gi_frame->f_stacktop != NULL) {
+        /* Generator is paused, so we need to close */
+        Py_TYPE(gen)->tp_del(self);
+        if (self->ob_refcnt > 0)
+            return;                     /* resurrected.  :( */
+    }
 
-	_PyObject_GC_UNTRACK(self);
-	Py_CLEAR(gen->gi_frame);
-	Py_CLEAR(gen->gi_code);
-	PyObject_GC_Del(gen);
+    _PyObject_GC_UNTRACK(self);
+    Py_CLEAR(gen->gi_frame);
+    Py_CLEAR(gen->gi_code);
+    PyObject_GC_Del(gen);
 }
 
 
 static PyObject *
 gen_send_ex(PyGenObject *gen, PyObject *arg, int exc)
 {
-	PyThreadState *tstate = PyThreadState_GET();
-	PyFrameObject *f = gen->gi_frame;
-	PyObject *result;
+    PyThreadState *tstate = PyThreadState_GET();
+    PyFrameObject *f = gen->gi_frame;
+    PyObject *result;
 
-	if (gen->gi_running) {
-		PyErr_SetString(PyExc_ValueError,
-				"generator already executing");
-		return NULL;
-	}
-	if (f==NULL || f->f_stacktop == NULL) {
-		/* Only set exception if called from send() */
-		if (arg && !exc)
-			PyErr_SetNone(PyExc_StopIteration);
-		return NULL;
-	}
+    if (gen->gi_running) {
+        PyErr_SetString(PyExc_ValueError,
+                        "generator already executing");
+        return NULL;
+    }
+    if (f==NULL || f->f_stacktop == NULL) {
+        /* Only set exception if called from send() */
+        if (arg && !exc)
+            PyErr_SetNone(PyExc_StopIteration);
+        return NULL;
+    }
 
-	if (f->f_lasti == -1) {
-		if (arg && arg != Py_None) {
-			PyErr_SetString(PyExc_TypeError,
-					"can't send non-None value to a "
-					"just-started generator");
-			return NULL;
-		}
-	} else {
-		/* Push arg onto the frame's value stack */
-		result = arg ? arg : Py_None;
-	        Py_INCREF(result);
-	        *(f->f_stacktop++) = result;
-	}
+    if (f->f_lasti == -1) {
+        if (arg && arg != Py_None) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can't send non-None value to a "
+                            "just-started generator");
+            return NULL;
+        }
+    } else {
+        /* Push arg onto the frame's value stack */
+        result = arg ? arg : Py_None;
+        Py_INCREF(result);
+        *(f->f_stacktop++) = result;
+    }
 
-	/* Generators always return to their most recent caller, not
-	 * necessarily their creator. */
-	Py_XINCREF(tstate->frame);
-	assert(f->f_back == NULL);
-	f->f_back = tstate->frame;
+    /* Generators always return to their most recent caller, not
+     * necessarily their creator. */
+    Py_XINCREF(tstate->frame);
+    assert(f->f_back == NULL);
+    f->f_back = tstate->frame;
 
-	gen->gi_running = 1;
-	result = PyEval_EvalFrameEx(f, exc);
-	gen->gi_running = 0;
+    gen->gi_running = 1;
+    result = PyEval_EvalFrameEx(f, exc);
+    gen->gi_running = 0;
 
-	/* Don't keep the reference to f_back any longer than necessary.  It
-	 * may keep a chain of frames alive or it could create a reference
-	 * cycle. */
-	assert(f->f_back == tstate->frame);
-	Py_CLEAR(f->f_back);
+    /* Don't keep the reference to f_back any longer than necessary.  It
+     * may keep a chain of frames alive or it could create a reference
+     * cycle. */
+    assert(f->f_back == tstate->frame);
+    Py_CLEAR(f->f_back);
 
-	/* If the generator just returned (as opposed to yielding), signal
-	 * that the generator is exhausted. */
-	if (result == Py_None && f->f_stacktop == NULL) {
-		Py_DECREF(result);
-		result = NULL;
-		/* Set exception if not called by gen_iternext() */
-		if (arg)
-			PyErr_SetNone(PyExc_StopIteration);
-	}
+    /* If the generator just returned (as opposed to yielding), signal
+     * that the generator is exhausted. */
+    if (result == Py_None && f->f_stacktop == NULL) {
+        Py_DECREF(result);
+        result = NULL;
+        /* Set exception if not called by gen_iternext() */
+        if (arg)
+            PyErr_SetNone(PyExc_StopIteration);
+    }
 
-	if (!result || f->f_stacktop == NULL) {
-		/* generator can't be rerun, so release the frame */
-		Py_DECREF(f);
-		gen->gi_frame = NULL;
-	}
+    if (!result || f->f_stacktop == NULL) {
+        /* generator can't be rerun, so release the frame */
+        Py_DECREF(f);
+        gen->gi_frame = NULL;
+    }
 
-	return result;
+    return result;
 }
 
 PyDoc_STRVAR(send_doc,
@@ -116,7 +116,7 @@
 static PyObject *
 gen_send(PyGenObject *gen, PyObject *arg)
 {
-	return gen_send_ex(gen, arg, 0);
+    return gen_send_ex(gen, arg, 0);
 }
 
 PyDoc_STRVAR(close_doc,
@@ -125,83 +125,83 @@
 static PyObject *
 gen_close(PyGenObject *gen, PyObject *args)
 {
-	PyObject *retval;
-	PyErr_SetNone(PyExc_GeneratorExit);
-	retval = gen_send_ex(gen, Py_None, 1);
-	if (retval) {
-		Py_DECREF(retval);
-		PyErr_SetString(PyExc_RuntimeError,
-				"generator ignored GeneratorExit");
-		return NULL;
-	}
-	if (PyErr_ExceptionMatches(PyExc_StopIteration)
-	    || PyErr_ExceptionMatches(PyExc_GeneratorExit))
-	{
-		PyErr_Clear();	/* ignore these errors */
-		Py_INCREF(Py_None);
-		return Py_None;
-	}
-	return NULL;
+    PyObject *retval;
+    PyErr_SetNone(PyExc_GeneratorExit);
+    retval = gen_send_ex(gen, Py_None, 1);
+    if (retval) {
+        Py_DECREF(retval);
+        PyErr_SetString(PyExc_RuntimeError,
+                        "generator ignored GeneratorExit");
+        return NULL;
+    }
+    if (PyErr_ExceptionMatches(PyExc_StopIteration)
+        || PyErr_ExceptionMatches(PyExc_GeneratorExit))
+    {
+        PyErr_Clear();          /* ignore these errors */
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    return NULL;
 }
 
 static void
 gen_del(PyObject *self)
 {
-        PyObject *res;
-        PyObject *error_type, *error_value, *error_traceback;
-	PyGenObject *gen = (PyGenObject *)self;
+    PyObject *res;
+    PyObject *error_type, *error_value, *error_traceback;
+    PyGenObject *gen = (PyGenObject *)self;
 
-	if (gen->gi_frame == NULL || gen->gi_frame->f_stacktop == NULL)
-		/* Generator isn't paused, so no need to close */
-		return;
+    if (gen->gi_frame == NULL || gen->gi_frame->f_stacktop == NULL)
+        /* Generator isn't paused, so no need to close */
+        return;
 
-        /* Temporarily resurrect the object. */
-        assert(self->ob_refcnt == 0);
-        self->ob_refcnt = 1;
+    /* Temporarily resurrect the object. */
+    assert(self->ob_refcnt == 0);
+    self->ob_refcnt = 1;
 
-        /* Save the current exception, if any. */
-        PyErr_Fetch(&error_type, &error_value, &error_traceback);
+    /* Save the current exception, if any. */
+    PyErr_Fetch(&error_type, &error_value, &error_traceback);
 
-	res = gen_close(gen, NULL);
+    res = gen_close(gen, NULL);
 
-	if (res == NULL)
-		PyErr_WriteUnraisable(self);
-	else
-		Py_DECREF(res);
+    if (res == NULL)
+        PyErr_WriteUnraisable(self);
+    else
+        Py_DECREF(res);
 
-        /* Restore the saved exception. */
-        PyErr_Restore(error_type, error_value, error_traceback);
+    /* Restore the saved exception. */
+    PyErr_Restore(error_type, error_value, error_traceback);
 
-        /* Undo the temporary resurrection; can't use DECREF here, it would
-         * cause a recursive call.
-         */
-        assert(self->ob_refcnt > 0);
-        if (--self->ob_refcnt == 0)
-                return; /* this is the normal path out */
+    /* Undo the temporary resurrection; can't use DECREF here, it would
+     * cause a recursive call.
+     */
+    assert(self->ob_refcnt > 0);
+    if (--self->ob_refcnt == 0)
+        return; /* this is the normal path out */
 
-        /* close() resurrected it!  Make it look like the original Py_DECREF
-         * never happened.
-         */
-        {
-                Py_ssize_t refcnt = self->ob_refcnt;
-                _Py_NewReference(self);
-                self->ob_refcnt = refcnt;
-        }
-        assert(PyType_IS_GC(self->ob_type) &&
-               _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
+    /* close() resurrected it!  Make it look like the original Py_DECREF
+     * never happened.
+     */
+    {
+        Py_ssize_t refcnt = self->ob_refcnt;
+        _Py_NewReference(self);
+        self->ob_refcnt = refcnt;
+    }
+    assert(PyType_IS_GC(self->ob_type) &&
+           _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
 
-        /* If Py_REF_DEBUG, _Py_NewReference bumped _Py_RefTotal, so
-         * we need to undo that. */
-        _Py_DEC_REFTOTAL;
-        /* If Py_TRACE_REFS, _Py_NewReference re-added self to the object
-         * chain, so no more to do there.
-         * If COUNT_ALLOCS, the original decref bumped tp_frees, and
-         * _Py_NewReference bumped tp_allocs:  both of those need to be
-         * undone.
-         */
+    /* If Py_REF_DEBUG, _Py_NewReference bumped _Py_RefTotal, so
+     * we need to undo that. */
+    _Py_DEC_REFTOTAL;
+    /* If Py_TRACE_REFS, _Py_NewReference re-added self to the object
+     * chain, so no more to do there.
+     * If COUNT_ALLOCS, the original decref bumped tp_frees, and
+     * _Py_NewReference bumped tp_allocs:  both of those need to be
+     * undone.
+     */
 #ifdef COUNT_ALLOCS
-        --self->ob_type->tp_frees;
-        --self->ob_type->tp_allocs;
+    --self->ob_type->tp_frees;
+    --self->ob_type->tp_allocs;
 #endif
 }
 
@@ -214,91 +214,91 @@
 static PyObject *
 gen_throw(PyGenObject *gen, PyObject *args)
 {
-	PyObject *typ;
-	PyObject *tb = NULL;
-	PyObject *val = NULL;
+    PyObject *typ;
+    PyObject *tb = NULL;
+    PyObject *val = NULL;
 
-	if (!PyArg_UnpackTuple(args, "throw", 1, 3, &typ, &val, &tb))
-		return NULL;
+    if (!PyArg_UnpackTuple(args, "throw", 1, 3, &typ, &val, &tb))
+        return NULL;
 
-	/* First, check the traceback argument, replacing None with
-	   NULL. */
-	if (tb == Py_None)
-		tb = NULL;
-	else if (tb != NULL && !PyTraceBack_Check(tb)) {
-		PyErr_SetString(PyExc_TypeError,
-			"throw() third argument must be a traceback object");
-		return NULL;
-	}
+    /* First, check the traceback argument, replacing None with
+       NULL. */
+    if (tb == Py_None)
+        tb = NULL;
+    else if (tb != NULL && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "throw() third argument must be a traceback object");
+        return NULL;
+    }
 
-	Py_INCREF(typ);
-	Py_XINCREF(val);
-	Py_XINCREF(tb);
+    Py_INCREF(typ);
+    Py_XINCREF(val);
+    Py_XINCREF(tb);
 
-	if (PyExceptionClass_Check(typ)) {
-		PyErr_NormalizeException(&typ, &val, &tb);
-	}
+    if (PyExceptionClass_Check(typ)) {
+        PyErr_NormalizeException(&typ, &val, &tb);
+    }
 
-	else if (PyExceptionInstance_Check(typ)) {
-		/* Raising an instance.  The value should be a dummy. */
-		if (val && val != Py_None) {
-			PyErr_SetString(PyExc_TypeError,
-			  "instance exception may not have a separate value");
-			goto failed_throw;
-		}
-		else {
-			/* Normalize to raise <class>, <instance> */
-			Py_XDECREF(val);
-			val = typ;
-			typ = PyExceptionInstance_Class(typ);
-			Py_INCREF(typ);
-		}
-	}
-	else {
-		/* Not something you can raise.  throw() fails. */
-		PyErr_Format(PyExc_TypeError,
-			     "exceptions must be classes, or instances, not %s",
-			     typ->ob_type->tp_name);
-			goto failed_throw;
-	}
+    else if (PyExceptionInstance_Check(typ)) {
+        /* Raising an instance.  The value should be a dummy. */
+        if (val && val != Py_None) {
+            PyErr_SetString(PyExc_TypeError,
+              "instance exception may not have a separate value");
+            goto failed_throw;
+        }
+        else {
+            /* Normalize to raise <class>, <instance> */
+            Py_XDECREF(val);
+            val = typ;
+            typ = PyExceptionInstance_Class(typ);
+            Py_INCREF(typ);
+        }
+    }
+    else {
+        /* Not something you can raise.  throw() fails. */
+        PyErr_Format(PyExc_TypeError,
+                     "exceptions must be classes, or instances, not %s",
+                     typ->ob_type->tp_name);
+            goto failed_throw;
+    }
 
-	PyErr_Restore(typ, val, tb);
-	return gen_send_ex(gen, Py_None, 1);
+    PyErr_Restore(typ, val, tb);
+    return gen_send_ex(gen, Py_None, 1);
 
 failed_throw:
-	/* Didn't use our arguments, so restore their original refcounts */
-	Py_DECREF(typ);
-	Py_XDECREF(val);
-	Py_XDECREF(tb);
-	return NULL;
+    /* Didn't use our arguments, so restore their original refcounts */
+    Py_DECREF(typ);
+    Py_XDECREF(val);
+    Py_XDECREF(tb);
+    return NULL;
 }
 
 
 static PyObject *
 gen_iternext(PyGenObject *gen)
 {
-	return gen_send_ex(gen, NULL, 0);
+    return gen_send_ex(gen, NULL, 0);
 }
 
 
 static PyObject *
 gen_repr(PyGenObject *gen)
 {
-	char *code_name;
-	code_name = PyString_AsString(((PyCodeObject *)gen->gi_code)->co_name);
-	if (code_name == NULL)
-		return NULL;
-	return PyString_FromFormat("<generator object %.200s at %p>",
-				   code_name, gen);
+    char *code_name;
+    code_name = PyString_AsString(((PyCodeObject *)gen->gi_code)->co_name);
+    if (code_name == NULL)
+        return NULL;
+    return PyString_FromFormat("<generator object %.200s at %p>",
+                               code_name, gen);
 }
 
 
 static PyObject *
 gen_get_name(PyGenObject *gen)
 {
-	PyObject *name = ((PyCodeObject *)gen->gi_code)->co_name;
-	Py_INCREF(name);
-	return name;
+    PyObject *name = ((PyCodeObject *)gen->gi_code)->co_name;
+    Py_INCREF(name);
+    return name;
 }
 
 
@@ -306,109 +306,109 @@
 "Return the name of the generator's associated code object.");
 
 static PyGetSetDef gen_getsetlist[] = {
-	{"__name__", (getter)gen_get_name, NULL, gen__name__doc__},
-	{NULL}
+    {"__name__", (getter)gen_get_name, NULL, gen__name__doc__},
+    {NULL}
 };
 
 
 static PyMemberDef gen_memberlist[] = {
-	{"gi_frame",	T_OBJECT, offsetof(PyGenObject, gi_frame),	RO},
-	{"gi_running",	T_INT,    offsetof(PyGenObject, gi_running),	RO},
-        {"gi_code",     T_OBJECT, offsetof(PyGenObject, gi_code),  RO},
-	{NULL}	/* Sentinel */
+    {"gi_frame",        T_OBJECT, offsetof(PyGenObject, gi_frame),      RO},
+    {"gi_running",      T_INT,    offsetof(PyGenObject, gi_running),    RO},
+    {"gi_code",     T_OBJECT, offsetof(PyGenObject, gi_code),  RO},
+    {NULL}      /* Sentinel */
 };
 
 static PyMethodDef gen_methods[] = {
-	{"send",(PyCFunction)gen_send, METH_O, send_doc},
-	{"throw",(PyCFunction)gen_throw, METH_VARARGS, throw_doc},
-	{"close",(PyCFunction)gen_close, METH_NOARGS, close_doc},
-	{NULL, NULL}	/* Sentinel */
+    {"send",(PyCFunction)gen_send, METH_O, send_doc},
+    {"throw",(PyCFunction)gen_throw, METH_VARARGS, throw_doc},
+    {"close",(PyCFunction)gen_close, METH_NOARGS, close_doc},
+    {NULL, NULL}        /* Sentinel */
 };
 
 PyTypeObject PyGen_Type = {
-	PyVarObject_HEAD_INIT(&PyType_Type, 0)
-	"generator",				/* tp_name */
-	sizeof(PyGenObject),			/* tp_basicsize */
-	0,					/* tp_itemsize */
-	/* methods */
-	(destructor)gen_dealloc, 		/* tp_dealloc */
-	0,					/* tp_print */
-	0, 					/* tp_getattr */
-	0,					/* tp_setattr */
-	0,					/* tp_compare */
-	(reprfunc)gen_repr,			/* tp_repr */
-	0,					/* tp_as_number */
-	0,					/* tp_as_sequence */
-	0,					/* tp_as_mapping */
-	0,					/* tp_hash */
-	0,					/* tp_call */
-	0,					/* tp_str */
-	PyObject_GenericGetAttr,		/* tp_getattro */
-	0,					/* tp_setattro */
-	0,					/* tp_as_buffer */
-	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
- 	0,					/* tp_doc */
- 	(traverseproc)gen_traverse,		/* tp_traverse */
- 	0,					/* tp_clear */
-	0,					/* tp_richcompare */
-	offsetof(PyGenObject, gi_weakreflist),	/* tp_weaklistoffset */
-	PyObject_SelfIter,			/* tp_iter */
-	(iternextfunc)gen_iternext,		/* tp_iternext */
-	gen_methods,				/* tp_methods */
-	gen_memberlist,				/* tp_members */
-	gen_getsetlist,				/* tp_getset */
-	0,					/* tp_base */
-	0,					/* tp_dict */
+    PyVarObject_HEAD_INIT(&PyType_Type, 0)
+    "generator",                                /* tp_name */
+    sizeof(PyGenObject),                        /* tp_basicsize */
+    0,                                          /* tp_itemsize */
+    /* methods */
+    (destructor)gen_dealloc,                    /* tp_dealloc */
+    0,                                          /* tp_print */
+    0,                                          /* tp_getattr */
+    0,                                          /* tp_setattr */
+    0,                                          /* tp_compare */
+    (reprfunc)gen_repr,                         /* tp_repr */
+    0,                                          /* tp_as_number */
+    0,                                          /* tp_as_sequence */
+    0,                                          /* tp_as_mapping */
+    0,                                          /* tp_hash */
+    0,                                          /* tp_call */
+    0,                                          /* tp_str */
+    PyObject_GenericGetAttr,                    /* tp_getattro */
+    0,                                          /* tp_setattro */
+    0,                                          /* tp_as_buffer */
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
+    0,                                          /* tp_doc */
+    (traverseproc)gen_traverse,                 /* tp_traverse */
+    0,                                          /* tp_clear */
+    0,                                          /* tp_richcompare */
+    offsetof(PyGenObject, gi_weakreflist),      /* tp_weaklistoffset */
+    PyObject_SelfIter,                          /* tp_iter */
+    (iternextfunc)gen_iternext,                 /* tp_iternext */
+    gen_methods,                                /* tp_methods */
+    gen_memberlist,                             /* tp_members */
+    gen_getsetlist,                             /* tp_getset */
+    0,                                          /* tp_base */
+    0,                                          /* tp_dict */
 
-	0,					/* tp_descr_get */
-	0,					/* tp_descr_set */
-	0,					/* tp_dictoffset */
-	0,					/* tp_init */
-	0,					/* tp_alloc */
-	0,					/* tp_new */
-	0,					/* tp_free */
-	0,					/* tp_is_gc */
-	0,					/* tp_bases */
-	0,					/* tp_mro */
-	0,					/* tp_cache */
-	0,					/* tp_subclasses */
-	0,					/* tp_weaklist */
-	gen_del,				/* tp_del */
+    0,                                          /* tp_descr_get */
+    0,                                          /* tp_descr_set */
+    0,                                          /* tp_dictoffset */
+    0,                                          /* tp_init */
+    0,                                          /* tp_alloc */
+    0,                                          /* tp_new */
+    0,                                          /* tp_free */
+    0,                                          /* tp_is_gc */
+    0,                                          /* tp_bases */
+    0,                                          /* tp_mro */
+    0,                                          /* tp_cache */
+    0,                                          /* tp_subclasses */
+    0,                                          /* tp_weaklist */
+    gen_del,                                    /* tp_del */
 };
 
 PyObject *
 PyGen_New(PyFrameObject *f)
 {
-	PyGenObject *gen = PyObject_GC_New(PyGenObject, &PyGen_Type);
-	if (gen == NULL) {
-		Py_DECREF(f);
-		return NULL;
-	}
-	gen->gi_frame = f;
-	Py_INCREF(f->f_code);
-	gen->gi_code = (PyObject *)(f->f_code);
-	gen->gi_running = 0;
-	gen->gi_weakreflist = NULL;
-	_PyObject_GC_TRACK(gen);
-	return (PyObject *)gen;
+    PyGenObject *gen = PyObject_GC_New(PyGenObject, &PyGen_Type);
+    if (gen == NULL) {
+        Py_DECREF(f);
+        return NULL;
+    }
+    gen->gi_frame = f;
+    Py_INCREF(f->f_code);
+    gen->gi_code = (PyObject *)(f->f_code);
+    gen->gi_running = 0;
+    gen->gi_weakreflist = NULL;
+    _PyObject_GC_TRACK(gen);
+    return (PyObject *)gen;
 }
 
 int
 PyGen_NeedsFinalizing(PyGenObject *gen)
 {
-	int i;
-	PyFrameObject *f = gen->gi_frame;
+    int i;
+    PyFrameObject *f = gen->gi_frame;
 
-	if (f == NULL || f->f_stacktop == NULL || f->f_iblock <= 0)
-		return 0; /* no frame or empty blockstack == no finalization */
+    if (f == NULL || f->f_stacktop == NULL || f->f_iblock <= 0)
+        return 0; /* no frame or empty blockstack == no finalization */
 
-	/* Any block type besides a loop requires cleanup. */
-	i = f->f_iblock;
-	while (--i >= 0) {
-		if (f->f_blockstack[i].b_type != SETUP_LOOP)
-			return 1;
-	}
+    /* Any block type besides a loop requires cleanup. */
+    i = f->f_iblock;
+    while (--i >= 0) {
+        if (f->f_blockstack[i].b_type != SETUP_LOOP)
+            return 1;
+    }
 
-	/* No blocks except loops, it's safe to skip finalization. */
-	return 0;
+    /* No blocks except loops, it's safe to skip finalization. */
+    return 0;
 }