Fix minor spelling error.
Fix minor spelling error.

Change-Id: Ibcde4444cef08fd7510f4d0ccc3bf60c16731d77
Reviewed-by: Tor Arne Vestbø <455e994b14f100bcf4496f5548752c1ff193cc50@digia.com>

kobolabs/qtmacextras,kobolabs/qtmacextras