Issue #28139: Fix messed up indentation

Also update the classmethod and staticmethod doc strings and comments to
match the RST documentation.
diff --git a/Modules/flmodule.c b/Modules/flmodule.c
index 0ddf600..a21489e 100644
--- a/Modules/flmodule.c
+++ b/Modules/flmodule.c
@@ -151,9 +151,9 @@
         g->ob_callback_arg = NULL;
     }
     else {
-    PyObject *a, *b;
-    if (!PyArg_UnpackTuple(args, "set_call_back", 2, 2, &a, &b))
-        return NULL;
+        PyObject *a, *b;
+        if (!PyArg_UnpackTuple(args, "set_call_back", 2, 2, &a, &b))
+            return NULL;
         Py_XDECREF(g->ob_callback);
         Py_XDECREF(g->ob_callback_arg);
         g->ob_callback = a;
@@ -2124,10 +2124,9 @@
 PyMODINIT_FUNC
 initfl(void)
 {
-
     if (PyErr_WarnPy3k("the fl module has been removed in "
                        "Python 3.0", 2) < 0)
-    return;
+        return;
 
     Py_InitModule("fl", forms_methods);
     if (m == NULL)