Invoke the bash shell via /usr/bin/env so that these scripts run on operating systems without /bin/bash too.

TEST=run "git cl owners" on FreeBSD
BUG=

Review URL: https://codereview.chromium.org/197213008

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@274320 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/git-runhooks b/git-runhooks
index 35af2ea..5bb503e 100755
--- a/git-runhooks
+++ b/git-runhooks
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 while test "$PWD" != "/"; do
   if test -f "$PWD/src/.gitmodules"; then