#11515: fix several typos. Patch by Piotr Kasprzyk.
diff --git a/Python/_warnings.c b/Python/_warnings.c
index 1dc2512..88be7db 100644
--- a/Python/_warnings.c
+++ b/Python/_warnings.c
@@ -725,7 +725,7 @@
     return 0;
 }
 
-/* PyErr_Warn is only for backwards compatability and will be removed.
+/* PyErr_Warn is only for backwards compatibility and will be removed.
    Use PyErr_WarnEx instead. */
 
 #undef PyErr_Warn