Fix translations of $GenericName
$GenericName was translated before being passed to KMoreToolsService::formatString,
causing translators to process "$GenericName - ..." in their language, in turn causing formatString not to replace the expected placeholder.
In another language than English:
Click on the free space progress bar
Before (with French) :
First entry begins with "$NomGénérique -..."
First entry begins with "Statistiques d'utilisation des disques - ..."
Reviewers: leinir, ngraham, Localization, aspotashev
Reviewed By: ngraham, aspotashev
Subscribers: aspotashev, kde-frameworks-devel
Differential Revision: https://phabricator.kde.org/D25216