scriptreplay: show help text if run with no arguments

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

diff --git a/util-linux/scriptreplay.c b/util-linux/scriptreplay.c
index 6474d38e89c9e8bc755f413bd187fb4cc5e1d170..d7e19330359753f4bdb86cefa03f1e79f061dce1 100644 (file)
--- a/util-linux/scriptreplay.c
+++ b/util-linux/scriptreplay.c
@@ -18,6 +18,9 @@ int scriptreplay_main(int argc UNUSED_PARAM, char **argv)
        unsigned long count;
        FILE *tfp;
 
+       if (!argv[1])
+               bb_show_usage();
+
        if (argv[2]) {
                script = argv[2];
                if (argv[3])