Make warnings fatal on modules too

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@612 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/dialplans/mod_dialplan_directory/mod_dialplan_directory.c

@@ -132,7 +132,7 @@ switch_caller_extension *directory_dialplan_hunt(switch_core_session *session)
 				}
 				switch_copy_string(app, val, sizeof(app));
 				if ((data = strchr(app, ' '))) {
-					*data++ = NULL;
+					*data++ = '\0';
 				}
 				switch_caller_extension_add_application(session, extension, app, data);
 			}