Oops, ignore SIGALRM, not 0

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40862

src/SDL_fatal.c

@@ -141,7 +141,7 @@ void SDL_InstallParachute(void)
 	sigaction(SIGALRM, NULL, &action);
 	if ( action.sa_handler == SIG_DFL ) {
 		action.sa_handler = SIG_IGN;
-		sigaction(SDL_fatal_signals[i], &action, NULL);
+		sigaction(SIGALRM, &action, NULL);
 	}
 #endif
 #else