From cc90e3aa06cc3de32e4679dcccd0f00a2a4bdf79 Mon Sep 17 00:00:00 2001
From: Christopher Chow <soliah@gmail.com>
Date: Fri, 4 Feb 2011 11:33:20 +1100
Subject: [PATCH] Fixed auto update.

Paramater substitution instead of command subsitution was being used
causing the calculation of time since last check to be incorrect.
---
 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 c59ebaed..4643739c 100644
--- a/tools/check_for_upgrade.sh
+++ b/tools/check_for_upgrade.sh
@@ -16,7 +16,7 @@ then
     _update_zsh_update && return 0;
   fi
 
-  epoch_diff=$((${_current_epoch} - $LAST_EPOCH))
+  epoch_diff=$(($(_current_epoch) - $LAST_EPOCH))
   if [ $epoch_diff -gt 6 ]
   then
     echo "[Oh My Zsh] Would you like to check for updates?"