D16966: Fix typo in i18n message (cmdline option description)

[Laurent Montel]

mlaurent accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R290 KPackage

BRANCH
  opt-i18n

REVISION DETAIL
  https://phabricator.kde.org/D16966

To: aspotashev, mlaurent
Cc: kde-frameworks-devel, michaelh, ngraham, bruns