Update deprecated macro AC_HELP_STRING.  Will regenerate configure in later update.

git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@1981 4407c894-4637-0410-b4f5-ada5f102cad1

mingw-w64-crt/configure.ac

diff --git a/mingw-w64-crt/configure.ac b/mingw-w64-crt/configure.ac
index bc971c6..80d30f9 100644
--- a/mingw-w64-crt/configure.ac
+++ b/mingw-w64-crt/configure.ac
@@ -126,7 +126,7 @@
 
 AC_ARG_ENABLE(
   wildcard,
-  AC_HELP_STRING([--enable-wildcard], [Enable command line globbing [[default=no]]]),
+  AS_HELP_STRING([--enable-wildcard],[Enable command line globbing [[default=no]]]),
   [],
   [enable_wildcard=no]
 )