D9628: update sweeper docbook to kf5

[Yuri Chornoivan]

yurchor accepted this revision as: yurchor.
This revision is now accepted and ready to land.

REPOSITORY
  R364 Sweeper

REVISION DETAIL
  https://phabricator.kde.org/D9628

To: lueck, #documentation, yurchor
Cc: #documentation, kde-utils-devel