D6829: Add ability to use the new kauth helper in file ioslave

[David Faure]

dfaure added inline comments.

INLINE COMMENTS

> slavebase.h:939
> +    /**
> +     * Checks with job if privilege operation is allowed.
> +     */

missing @since 5.38, BTW

BRANCH
  second

REVISION DETAIL
  https://phabricator.kde.org/D6829

To: chinmoyr, dfaure, #frameworks
Cc: #frameworks