From: Andre Noll <maan@tuebingen.mpg.de>
Date: Tue, 3 Mar 2015 17:28:19 +0000 (+0100)
Subject: common: Allow undefined $gsu_errors.
X-Git-Url: http://git.tuebingen.mpg.de/?p=gsu.git;a=commitdiff_plain;h=1e5e330b7a100636ef7d3874a322e7c23d7fe575

common: Allow undefined $gsu_errors.

If this variable is undefined, and the nounset option is turned on
(set -u), gsu aborts early when setting up the gsu_error_txt array.

Fix this by using ${gsu_errors:-} instead of plain $gsu_errors to
allow for scripts without error codes.

Reported by Congmao Wang.
---

diff --git a/common b/common
index e326890..d418095 100644
--- a/common
+++ b/common
@@ -19,7 +19,7 @@ E_GSU_GETOPTS			getopts error
 E_GSU_DIALOG			dialog error
 E_GSU_MKTEMP			mktemp error
 E_GSU_MENU_TREE			invalid menu tree
-$gsu_errors
+${gsu_errors:-}
 "
 	local a b i=0
 	while read a b; do