sleep: fix "sleep -- ARGS"

function                                             old     new   delta
sleep_main                                           116     119      +3
printf_main                                          860     837     -23
single_argv                                           50      25     -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 3/-48)             Total: -45 bytes

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

1 files changed, 2 insertions, 2 deletions

diff --git a/coreutils/sleep.c b/coreutils/sleep.c
index 6edff59cc..fa74f1fd4 100644
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -71,8 +71,8 @@ int sleep_main(int argc UNUSED_PARAM, char **argv)
          * + we can't use bb_show_usage
          * + applet_name can be the name of the shell
          */
-        ++argv;
-        if (!*argv) {
+        argv = skip_dash_dash(argv);
+        if (!argv[0]) {
                 /* Without this, bare "sleep" in ash shows _ash_ --help */
                 /* (ash can be the "sh" applet as well, so check 2nd char) */
                 if (ENABLE_ASH_SLEEP && applet_name[1] != 'l') {