SQL/Structure: Allow 20 character guild names.

sql/base/characters_database.sql

@@ -1734,7 +1734,7 @@ DROP TABLE IF EXISTS `guild_rank`;
 CREATE TABLE `guild_rank` (
   `guildid` int(10) unsigned NOT NULL DEFAULT '0',
   `rid` tinyint(3) unsigned NOT NULL,
-  `rname` varchar(15) NOT NULL DEFAULT '',
+  `rname` varchar(20) NOT NULL DEFAULT '',
   `rights` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `BankMoneyPerDay` int(10) unsigned NOT NULL DEFAULT '0',
   PRIMARY KEY (`guildid`,`rid`),