ash: fix "unset OPTIND" throwing an error message

Added test was failing quite severely. Now only one subtest fails
(OPTERR=0 has no effect).

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

1 files changed, 3 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 5c03f1fdc..15c7c325a 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2099,7 +2099,9 @@ extern struct globals_var *const ash_ptr_to_globals_var;
 static void FAST_FUNC
 getoptsreset(const char *value)
 {
-        shellparam.optind = number(value) ?: 1;
+        shellparam.optind = 1;
+        if (is_number(value))
+                shellparam.optind = number(value) ?: 1;
         shellparam.optoff = -1;
 }
 #endif