Make basic-application test more robust

This program is only used indirectly from gapplication.c in
tests, but that is no reason to let it segfault when it is
run from the commandline without arguments.

gio/tests/basic-application.c

@@ -61,7 +61,7 @@ main (int argc, char **argv)
 
   app = g_application_new ("org.gtk.TestApplication",
                            G_APPLICATION_HANDLES_OPEN |
-                           (strcmp (argv[1], "./cmd") == 0 ?
+                           (g_strcmp0 (argv[1], "./cmd") == 0 ?
                              G_APPLICATION_HANDLES_COMMAND_LINE
                            : 0));
   g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
@@ -73,6 +73,7 @@ main (int argc, char **argv)
   g_application_set_inactivity_timeout (app, 1000);
 #endif
   status = g_application_run (app, argc - 1, argv + 1);
+
   g_object_unref (app);
 
   g_print ("exit status: %d\n", status);