Make the log stuff a bit tidier with some helper functions.

server.c

@@ -173,7 +173,7 @@ server_start(struct event_base *base, int lockfd, char *lockfile)
 	}
 	close(pair[0]);
 
-	if (debug_level > 3)
+	if (log_get_level() > 3)
 		tty_create_log();
 	if (pledge("stdio rpath wpath cpath fattr unix getpw recvfd proc exec "
 	    "tty ps", NULL) != 0)