shell: add OPTARG poisoning to getopt_optarg.tests

ash fails this!

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/shell/hush_test/hush-getopts/getopt_optarg.tests b/shell/hush_test/hush-getopts/getopt_optarg.tests
index b346284f0..33682e868 100755
--- a/shell/hush_test/hush-getopts/getopt_optarg.tests
+++ b/shell/hush_test/hush-getopts/getopt_optarg.tests
@@ -4,6 +4,7 @@ var=QWERTY
 OPTARG=ASDFGH
 while getopts "w:et" var; do
         echo "var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+        OPTARG=ASDFGH
 done
 echo "exited: var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
 
@@ -12,5 +13,6 @@ echo "*** OPTIND=0, optstring:'w:et' args:$*"
 OPTIND=0
 while getopts "w:et" var; do
         echo "var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+        OPTARG=ASDFGH
 done
 echo "exited: var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"