fixes

src/twn_timer.c

@@ -33,7 +33,7 @@ bool start_sanity_timer(uint32_t milliseconds_to_expire) {
 }
 
 
-bool end_sanity_timer(void) {
+void end_sanity_timer(void) {
     SDL_RemoveTimer(sanity_timer);
     sanity_timer = 0;
 }