Use .lol (lowercase) instead of .LOL for log-off list extension.

src/sbbs3/logout.cpp

@@ -234,7 +234,7 @@ void sbbs_t::logofflist()
 		return;
 	if(localtime_r(&logontime,&tm)==NULL)
 		return;
-	sprintf(str,"%slogs/%2.2d%2.2d%2.2d.LOL",cfg.logs_dir,tm.tm_mon+1,tm.tm_mday
+	sprintf(str,"%slogs/%2.2d%2.2d%2.2d.lol",cfg.logs_dir,tm.tm_mon+1,tm.tm_mday
 		,TM_YEAR(tm.tm_year));
 	if((file=nopen(str,O_WRONLY|O_CREAT|O_APPEND))==-1) {
 		errormsg(WHERE,ERR_OPEN,str,O_WRONLY|O_CREAT|O_APPEND);