Fixed auto update.
Paramater substitution instead of command subsitution was being used
causing the calculation of time since last check to be incorrect.
Diff
1diff --git a/tools/check_for_upgrade.sh b/tools/check_for_upgrade.sh
2index c59ebaed48ebd8b7a3778c6d81f34126d101aa24..4643739ca51b136737c4a1981e3354b8162cb66c 100644
3--- a/tools/check_for_upgrade.sh
4+++ b/tools/check_for_upgrade.sh
5@@ -16,7 +16,7 @@ then
6 _update_zsh_update && return 0;
7 fi
8 9- epoch_diff=$((${_current_epoch} - $LAST_EPOCH))
10+ epoch_diff=$(($(_current_epoch) - $LAST_EPOCH))
11 if [ $epoch_diff -gt 6 ]
12 then
13 echo "[Oh My Zsh] Would you like to check for updates?"