Quit with error 1 if pid file write fails.

git-svn-id: http://repo.ham.fi/svn/aprsc/trunk@213 3ce903b1-3385-4e86-93cd-f9a4a239f7ac

src/aprsc.c

@@ -234,7 +234,7 @@ int main(int argc, char **argv)
 	
 	/* write pid file, now that we have our final pid... might fail, which is critical */
 	if (!writepid(pidfile))
-		exit(0);
+		exit(1);
 	
 	/* catch signals */
 	signal(SIGINT, (void *)sighandler);