D19655: [kfilemetadata] Make it compile without foreach

[Stefan Brüns]

bruns added a reviewer: Baloo.

REPOSITORY
  R286 KFileMetaData

REVISION DETAIL
  https://phabricator.kde.org/D19655

To: mlaurent, dfaure, bruns, #baloo
Cc: bruns, kde-frameworks-devel, #baloo, gennad, domson, ashaposhnikov, 
michaelh, astippich, spoorun, ngraham, abrahams