From fd1e0660b37abcad45104712df73909ff09841e8 Mon Sep 17 00:00:00 2001
From: Bob Maerten <bob.maerten@gmail.com>
Date: Fri, 19 Apr 2013 09:58:31 +0200
Subject: [PATCH] Fix 'Bad substitution' error when upgrading

---
 tools/check_for_upgrade.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/check_for_upgrade.sh b/tools/check_for_upgrade.sh
index 581f03a07..1759cd366 100644
--- a/tools/check_for_upgrade.sh
+++ b/tools/check_for_upgrade.sh
@@ -9,7 +9,7 @@ function _update_zsh_update() {
 }
 
 function _upgrade_zsh() {
-  /usr/bin/env ZSH=$ZSH /bin/sh $ZSH/tools/upgrade.sh
+  /usr/bin/env ZSH=$ZSH /bin/bash $ZSH/tools/upgrade.sh
   # update the zsh file
   _update_zsh_update
 }