minor change to own recent commit with transform fcurve centers and some style edits and typo corrections.

source/blender/python/generic/bpy_internal_import.c

@@ -66,7 +66,7 @@ static PyObject   *imp_reload_orig = NULL;
  *
  * However Python's alternative is to use import hooks,
  * which are implemented in a way that we can't use our own importer as a
- * fall-back (instead we must try and fail - raise an exception evert time).
+ * fall-back (instead we must try and fail - raise an exception every time).
  * Since importing from blenders text-blocks is not the common case
  * I prefer to use Pythons import by default and fall-back to
  * Blenders - which we can only do by intercepting import calls I'm afraid.