[gtk+] parse-sass: don't hardcode bash path

[Cosimo Cecchi <cosimoc src gnome org>]

commit 02be88983eb700ac5524b5530ef64244ece7a0ec
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Thu May 14 11:32:10 2015 -0700

    parse-sass: don't hardcode bash path
    
    It's /bin/bash on some systems; just use /bin/sh instead.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=749593

 gtk/theme/Adwaita/parse-sass.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/theme/Adwaita/parse-sass.sh b/gtk/theme/Adwaita/parse-sass.sh
index e9cda25..e385f83 100755
--- a/gtk/theme/Adwaita/parse-sass.sh
+++ b/gtk/theme/Adwaita/parse-sass.sh
@@ -1,3 +1,3 @@
-#!/usr/bin/bash
+#!/bin/sh
 
 bundle exec sass --update --sourcemap=none .