[hackers] [tabbed][PATCH] don't assume non-null argv[0]

[NRK]

---
 xembed.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xembed.c b/xembed.c
index cbb0e97..0066d04 100644
--- a/xembed.c
+++ b/xembed.c
@@ -15,7 +15,8 @@ main(int argc, char *argv[])
        pid_t pgrp, tcpgrp;
 
        if (argc < 3) {
-               fprintf(stderr, "usage: %s flag cmd ...\n", argv[0]);
+               fprintf(stderr, "usage: %s flag cmd ...\n",
+                       argc > 0 ? argv[0] : "xembed");
                return 2;
        }
 
-- 
2.35.1