Issue #12196: Add pipe2() to the os module.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 95d71c9..6c45460 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -560,7 +560,7 @@
 /* Define to 1 if you have the `pause' function. */
 #undef HAVE_PAUSE
 
-/* Define if the OS supports pipe2() */
+/* Define to 1 if you have the `pipe2' function. */
 #undef HAVE_PIPE2
 
 /* Define to 1 if you have the `plock' function. */