D16701: Correct version of newly added PlasmaVirtualDesktop interface

[David Edmundson]

davidedmundson marked an inline comment as done.

REPOSITORY
  R127 KWayland

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D16701

To: davidedmundson, #kwin, zzag
Cc: zzag, kde-frameworks-devel, michaelh, ngraham, bruns