Add missing ',' between parameters [HEIMDAL-599]

From Michael Hammer of Gentoo, make this work with autoconf-2.64

diff --git a/cf/roken-frag.m4 b/cf/roken-frag.m4
index e2b3bc8d04e07787de029a5f81814225c1e5ae96..187ffc36e97013d0793979d5ae8bef5b621fafbf 100644 (file)
--- a/cf/roken-frag.m4
+++ b/cf/roken-frag.m4
@@ -586,7 +586,7 @@ rk_CHECK_VAR([__progname],
 #include <err.h>
 #endif])
 
-AC_CHECK_DECLS([optarg, optind, opterr, optopt, environ],[],[][
+AC_CHECK_DECLS([optarg, optind, opterr, optopt, environ],[],[],[
 #include <stdlib.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>