D18674: Add missing QStandardPaths to fix build

[Andreas Sturmlechner]

asturmlechner closed this revision.

REPOSITORY
  R181 Amarok

REVISION DETAIL
  https://phabricator.kde.org/D18674

To: asturmlechner, #amarok, markey, yurchor, heikobecker
Cc: heikobecker, yurchor, amarok-devel