[3.10] Fix typos in the Modules directory (GH-28761) (GH-28781)



(cherry picked from commit dd02a696e55b450413e765e698e653d781ca4205)


Co-authored-by: Christian Clauss <cclauss@me.com>

Automerge-Triggered-By: GH:gpshead
diff --git a/Modules/zlibmodule.c b/Modules/zlibmodule.c
index bc4ff60..68de701 100644
--- a/Modules/zlibmodule.c
+++ b/Modules/zlibmodule.c
@@ -82,7 +82,7 @@ typedef struct {
     Bytef *next_posi;
 } _Uint32Window;
 
-/* Initialize the buffer with an inital buffer size.
+/* Initialize the buffer with an initial buffer size.
 
    On success, return value >= 0
    On failure, return value < 0 */