[Differential] [Updated] D1167: Part: simplify openFile() and use more KMessageWidgets

[elvisangelaccio (Elvis Angelaccio)]

elvisangelaccio marked an inline comment as done.

REPOSITORY
  rARK Ark

REVISION DETAIL
  https://phabricator.kde.org/D1167

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To: elvisangelaccio, rthomsen
Cc: kde-utils-devel, tctara