m4: sync with autoconf archive 2015-02-24

diff --git a/m4/README b/m4/README
index 68f3ed261c18fd553cc959939e3bfdfd83131610..9db33a32af47c01df755654603627b7be31f9512 100644 (file)
--- a/m4/README
+++ b/m4/README
@@ -2,7 +2,7 @@ README
 ======
 
 The following files were copied unmodified from the autoconf archive [1]
-(2014-02-28). Thanks.
+(2015-02-24). Thanks.
 
 [1]: http://www.gnu.org/software/autoconf-archive/