use basename(argv[0]) to determine true program name
diff --git a/util/telnet-client.c b/util/telnet-client.c
index f2fcedb..8401359 100644
--- a/util/telnet-client.c
+++ b/util/telnet-client.c
@@ -21,6 +21,7 @@
#include <ctype.h>
#include <termios.h>
#include <unistd.h>
+#include <libgen.h>
#ifdef HAVE_ZLIB
#include "zlib.h"
@@ -149,7 +150,8 @@
/* check usage */
if (argc != 3) {
- fprintf(stderr, "Usage:\n ./telnet-client <host> <port>\n");
+ fprintf(stderr, "Usage:\n %s <host> <port>\n",
+ basename(argv[0]));
return 1;
}