D26103: Put Q_REQUIRED_RESULT in front of the functions to fix builds with [[nodiscard]]

[Hannah von Reth]

This revision was automatically updated to reflect the committed changes.
Closed by commit R241:5cd949cce9f8: Put Q_REQUIRED_RESULT in front of the functions to fix builds with [[nodiscard]] (authored by vonreth).

REPOSITORY
  R241 KIO

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D26103?vs=71839&id=71868

REVISION DETAIL
  https://phabricator.kde.org/D26103

AFFECTED FILES
  src/ioslaves/ftp/ftp.h

To: vonreth, sitter, vkrause
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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