rebase: fix stderr redirect in apply_autostash()

The intention is to ignore all output from the 'git stash apply' call.
Adjust the order of the redirection to ensure that both stdout and
stderr are redirected to /dev/null.

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-rebase.sh

@@ -164,7 +164,7 @@ apply_autostash () {
 	if test -f "$state_dir/autostash"
 	then
 		stash_sha1=$(cat "$state_dir/autostash")
-		if git stash apply $stash_sha1 2>&1 >/dev/null
+		if git stash apply $stash_sha1 >/dev/null 2>&1
 		then
 			echo "$(gettext 'Applied autostash.')" >&2
 		else