fix typos, mostly in comments
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index db2a690..cac6a2d 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -734,7 +734,7 @@
/* error handling callback helper:
build arguments, call the callback and check the arguments,
- if no exception occured, copy the replacement to the output
+ if no exception occurred, copy the replacement to the output
and adjust various state variables.
return 0 on success, -1 on error
*/
@@ -2987,7 +2987,7 @@
/* Lookup the character ch in the mapping. If the character
can't be found, Py_None is returned (or NULL, if another
- error occured). */
+ error occurred). */
static PyObject *charmapencode_lookup(Py_UNICODE c, PyObject *mapping)
{
PyObject *w = PyInt_FromLong((long)c);