Removed unintentional trailing spaces in non-external and non-generated C files.
diff --git a/Objects/iterobject.c b/Objects/iterobject.c
index 77ff810..baa51da 100644
--- a/Objects/iterobject.c
+++ b/Objects/iterobject.c
@@ -212,7 +212,7 @@
         Py_DECREF(args);
         if (result != NULL) {
             int ok;
-            ok = PyObject_RichCompareBool(it->it_sentinel, result, Py_EQ);               
+            ok = PyObject_RichCompareBool(it->it_sentinel, result, Py_EQ);
             if (ok == 0)
                 return result; /* Common case, fast path */
             Py_DECREF(result);