[PATCH] t1301-shared-repo.sh: fix 'stat' portability issue

The t1301-shared-repo.sh testscript uses /usr/bin/stat to get the file
mode, which isn't portable.  There already is a dependency on Perl, so
use a Perl one-liner to do the file mode test, but portable.

Signed-off-by: Arjen Laarhoven <redacted>
---
 t/t1301-shared-repo.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/t/t1301-shared-repo.sh b/t/t1301-shared-repo.sh
index bb5f302..888c5fb 100755
--- a/t/t1301-shared-repo.sh
+++ b/t/t1301-shared-repo.sh

@@ -21,7 +21,7 @@ test_expect_success 'update-server-info honors core.sharedRepository' '
 	git commit -m a1 &&
 	umask 0277 &&
 	git update-server-info &&
-	test 444 = $(stat -c %a .git/info/refs)
+	$(perl -e '\''exit !(((stat ".git/info/refs")[2] & 0777) == 0444)'\'')
 '
 
 test_done

-- 
1.5.3.rc4.67.gf9286