Fix 'grep -m' when '-m' option is not available.

diff --git a/regress/scripts/setup b/regress/scripts/setup
index 549de86d3a5f0d44c3578ecf21c7b5303f18c8ca..0ffac8087b4a2e30c588c06660a2d6d9eb5cb8ec 100755 (executable)
--- a/regress/scripts/setup
+++ b/regress/scripts/setup
@@ -37,7 +37,7 @@ check_exit_code
 if [ x$PREBUILT != xyes ]; then
   which git >/dev/null 2>/dev/null
   if [ $? = 0 ] ; then
-    git show HEAD | grep -m 1 commit | awk '{print $2}' > build/git-version
+    git show HEAD | grep commit | hread -1 | awk '{print $2}' > build/git-version
   else
     echo "Git not found." >build/git-version
   fi