D20748: Fix wrong "Unable to find service type" warnings

[David Faure]

dfaure added a reviewer: apol.

REPOSITORY
  R244 KCoreAddons

REVISION DETAIL
  https://phabricator.kde.org/D20748

To: dfaure, mart, arichardson, davidedmundson, mpyne, apol
Cc: aacid, kde-frameworks-devel, michaelh, ngraham, bruns