[PATCH] extensions: fix typo in comment

[Paul Eggert]

* m4/extensions.m4: Sync from Autoconf master.
---
 ChangeLog        | 3 +++
 m4/extensions.m4 | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index eabbc62..2009045 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2016-09-15  Paul Eggert  <address@hidden>
 
+       extensions: fix typo in comment
+       * m4/extensions.m4: Sync from Autoconf master.
+
        stdint: support new _WIDTH macros
        * doc/posix-headers/stdint.texi: Document this.
        * lib/stdint.in.h: Add support for INTMAX_WIDTH. etc.
diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 87721a3..e114a6f 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,4 +1,4 @@
-# serial 14  -*- Autoconf -*-
+# serial 15  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
 # Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc.
@@ -96,7 +96,7 @@ dnl configure.ac when using autoheader 2.62.
 #ifndef __STDC_WANT_LIB_EXT2__
 # undef __STDC_WANT_LIB_EXT2__
 #endif
-/* Enable extensions specified by ISO/IEC TR 24747:2009.  */
+/* Enable extensions specified by ISO/IEC 24747:2009.  */
 #ifndef __STDC_WANT_MATH_SPEC_FUNCS__
 # undef __STDC_WANT_MATH_SPEC_FUNCS__
 #endif
-- 
2.7.4