It seems the "renameuserlogpage" message is not showing up properly on [[Special:Log]]. The cause seems likely to be r25997, which delays loading of the relevant message file until [[Special:Renameuser]] is actually accessed. I'd revert the change myself, but I'm not at home right now and can't access svn from here.
Version: unspecified
Severity: normal
URL: http://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard#Special:Log_broken