[gnome-keyring/dbus-api] Better message when gck-ssh-agent-standalone (test binary) used wrong.

[Stefan Walter <stefw src gnome org>]

commit 8ad038146bd8d4a8420e5a197d5076eab51abcd0
Author: Stef Walter <stef memberwebs com>
Date:   Fri Jun 26 17:03:25 2009 +0000

    Better message when gck-ssh-agent-standalone (test binary) used wrong.
    
    Add a better message when this test binary is used in the wrong way.
    Fixes bug #581782 Research by Jon Downland.

 pkcs11/ssh-agent/gck-ssh-agent-standalone.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/pkcs11/ssh-agent/gck-ssh-agent-standalone.c b/pkcs11/ssh-agent/gck-ssh-agent-standalone.c
index 98ea002..3dd619c 100644
--- a/pkcs11/ssh-agent/gck-ssh-agent-standalone.c
+++ b/pkcs11/ssh-agent/gck-ssh-agent-standalone.c
@@ -90,6 +90,11 @@ main(int argc, char *argv[])
 	if (!g_thread_supported ())
 		g_thread_init (NULL);
 	
+	if (argc <= 1) {
+		g_message ("specify pkcs11 module on the command line");
+		return 1;
+	}
+
 	module = gp11_module_initialize (argv[1], argc > 2 ? argv[2] : NULL, &error);
 	if (!module) {
 		g_message ("couldn't load pkcs11 module: %s", error->message);