D23832: Variable expansion: Prefer return value over return argument

[Dominik Haumann]

dhaumann added a reviewer: cullmann.

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D23832

To: dhaumann, cullmann
Cc: kwrite-devel, kde-frameworks-devel, LeGast00n, GB_2, domson, michaelh, 
ngraham, bruns, demsking, cullmann, sars, dhaumann