hush: fix "hush -c 'echo $#'" showing -1

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

shell/hush.c

@@ -7080,7 +7080,6 @@ int hush_main(int argc, char **argv)
 				/* -c 'script' (no params): prevent empty $0 */
 				G.global_argv--; /* points to argv[i] of 'script' */
 				G.global_argv[0] = argv[0];
-				G.global_argc--;
 			} /* else -c 'script' ARG0 [ARG1...]: $0 is ARG0 */
 			init_sigmasks();
 			parse_and_run_string(optarg);

shell/hush_test/hush-vars/param_expand_len.right

@@ -1,4 +1,9 @@
+0
+0
+1
+Make sure len parsing doesnt break arg count
 0 0
 4 4
+Testing len op
 4 3 2 1 0 0
 0 3 0

shell/hush_test/hush-vars/param_expand_len.tests

@@ -1,9 +1,14 @@
-# make sure len parsing doesnt break arg count
+"$THIS_SH" -c 'echo $#'
+"$THIS_SH" -c 'echo $#' arg0
+"$THIS_SH" -c 'echo $#' arg0 arg1
+
+echo Make sure len parsing doesnt break arg count
 set --
 echo $# ${#}
 set -- aaaa bbb cc d
 echo $# ${#}
 
+echo Testing len op
 echo ${#1} ${#2} ${#3} ${#4} ${#5} ${#6}
 
 unset e