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.
E_GSU_DIALOG dialog error
E_GSU_MKTEMP mktemp error
E_GSU_MENU_TREE invalid menu tree
E_GSU_DIALOG dialog error
E_GSU_MKTEMP mktemp error
E_GSU_MENU_TREE invalid menu tree
"
local a b i=0
while read a b; do
"
local a b i=0
while read a b; do