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--- common/cmd_test.c.orig 2015-04-13 14:53:03 UTC
+++ common/cmd_test.c
@@ -65,9 +65,14 @@ static int do_test(cmd_tbl_t *cmdtp, int
char * const *ap;
int i, op, left, adv, expr, last_expr, last_unop, last_binop;
- /* args? */
- if (argc < 3)
+ /*
+ * If no args, that's bogus, return false.
+ * If op is -z and no other args, answer is Yes, string is empty.
+ */
+ if (argc < 2)
return 1;
+ else if (argc == 2)
+ return !(strcmp(argv[1], "-z") == 0);
#ifdef DEBUG
{
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