[BUGFIX] Allow languages with more than 2 chars for BE users

Allow up to 6 characters for the lang column in the be_users table to
support languages like Brazilian (pt_BR) or French/Canada (fr_CA).

Releases: master
Resolves: #75296
Change-Id: I713da662c0c14c1efd6611e180d6e4f62a70933d
Reviewed-on: https://review.typo3.org/47413


Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/core/ext_tables.sql

@@ -64,7 +64,7 @@ CREATE TABLE be_users (
 	disable tinyint(1) unsigned DEFAULT '0' NOT NULL,
 	starttime int(11) unsigned DEFAULT '0' NOT NULL,
 	endtime int(11) unsigned DEFAULT '0' NOT NULL,
-	lang char(2) DEFAULT '' NOT NULL,
+	lang varchar(6) DEFAULT '' NOT NULL,
 	email varchar(80) DEFAULT '' NOT NULL,
 	db_mountpoints text,
 	options tinyint(4) unsigned DEFAULT '0' NOT NULL,