pre-push.sample: Make the script executable
pre-push.sample: Make the script executable

githooks(5) says that "[...]the .sample files are executable by default"
which was not true.

Signed-off-by: Wieland Hoffmann <e11edbb41334a578b9287de27715b1cd2772a54a@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git