D28088: Fix warnings

[Aleix Pol Gonzalez]

apol marked an inline comment as done.

REPOSITORY
  R242 Plasma Framework (Library)

REVISION DETAIL
  https://phabricator.kde.org/D28088

To: apol, #frameworks
Cc: ahmadsamir, kde-frameworks-devel, LeGast00n, cblack, GB_2, michaelh, 
ngraham, bruns