Typo fix.

Change-Id: Ide5afea6d4e7ba04cf3226f10e1ea530e1a60c10
Depends-On: Ic2a1b97aa44e9168bae4a1e28941208e7711bb46
Reviewed-on: http://gerrit.dmdirc.com/3742
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>