Fix typo in dict object comment (#15814)
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 73956df..5c0640d 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -39,7 +39,7 @@
* int32 for 2**16 <= dk_size <= 2**31
* int64 for 2**32 <= dk_size
-dk_entries is array of PyDictKeyEntry. It's size is USABLE_FRACTION(dk_size).
+dk_entries is array of PyDictKeyEntry. Its size is USABLE_FRACTION(dk_size).
DK_ENTRIES(dk) can be used to get pointer to entries.
NOTE: Since negative value is used for DKIX_EMPTY and DKIX_DUMMY, type of