Thread:Support/'user' in Extension:Renameuser

GENDER support needed for 'user' in the following messages:
 * MediaWiki:Renameuserconfirm/en
 * MediaWiki:Renameuser-submit-blocklog/en
 * MediaWiki:Logentry-renameuser-renameuser/en $4 or $5
 * MediaWiki:Logentry-renameuser-renameuser-legacier/en
 * MediaWiki:Renameuser-move-log/en