Author: Helen Foster
MDL-53980 lang: Merge English strings from the en_fix language pack
http://git.moodle.org/gw?p=moodle.git;a=commit;h=180e8183314fa532fa6424ce1acba364f1e1b441
http://github.com/moodle/moodle/commit/180e8183314fa532fa6424ce1acba364f1e1b441
+ 2.9 en [auth_dbpasstype,auth_db]
+ 2.9 en [auth_ldap_host_url,auth_ldap]
+ 2.9 en [changepasswordhelp,core_auth]
+ 2.9 en [unlimitedgrades_help,core_grades]