diff -up lightdm-1.10.2/src/lightdm.c.nodaemon_option lightdm-1.10.2/src/lightdm.c

--- lightdm-1.10.2/src/lightdm.c.nodaemon_option	2014-09-17 06:42:48.681674585 -0500

+++ lightdm-1.10.2/src/lightdm.c	2014-09-17 06:44:03.021901180 -0500

@@ -1135,7 +1135,7 @@ main (int argc, char **argv)

         g_printerr (/* Text printed out when an unknown command-line argument provided */

                     _("Run '%s --help' to see a full list of available command line options."), argv[0]);

         g_printerr ("\n");

-        return EXIT_FAILURE;

+        /* return EXIT_FAILURE; */

     }

     /* Show combined configuration if user requested it */