Typo in server shutdown command.

Original author VladimirMangos
Closes issue #57

--HG--
branch : trunk

sql/world.sql

@@ -655,7 +655,7 @@ INSERT INTO `command` VALUES
 ('server set closed','3','Syntax: server set closed on/off\r\n\r\nSets whether the world accepts new client connectsions.'),
 ('server set loglevel','4','Syntax: .server set loglevel #level\r\n\r\nSet server log level (0 - errors only, 1 - basic, 2 - detail, 3 - debug).'),
 ('server set motd','3','Syntax: .server set motd $MOTD\r\n\r\nSet server Message of the day.'),
-('server shutdown','3','Syntax: .server shutdown #delay [#exist_code]\r\n\r\nShut the server down after #delay seconds. Use #exist_code or 0 as program exist code.'),
+('server shutdown','3','Syntax: .server shutdown #delay [#exit_code]\r\n\r\nShut the server down after #delay seconds. Use #exit_code or 0 as program exit code.'),
 ('server shutdown cancel','3','Syntax: .server shutdown cancel\r\n\r\nCancel the restart/shutdown timer if any.'),
 ('setskill','3','Syntax: .setskill #skill #level [#max]\r\n\r\nSet a skill of id #skill with a current skill value of #level and a maximum value of #max (or equal current maximum if not provide) for the selected character. If no character is selected, you learn the skill.'),
 ('showarea','3','Syntax: .showarea #areaid\r\n\r\nReveal the area of #areaid to the selected character. If no character is selected, reveal this area to you.'),