D9749: Simplify code: return early to reduce indentation depth

[Milian Wolff]

This revision was automatically updated to reflect the committed changes.
Closed by commit R39:181c6146d399: Simplify code: return early to reduce indentation depth (authored by mwolff).

REPOSITORY
  R39 KTextEditor

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D9749?vs=24974&id=24992

REVISION DETAIL
  https://phabricator.kde.org/D9749

AFFECTED FILES
  src/completion/expandingtree/expandingwidgetmodel.cpp

To: mwolff, #kate, kfunk, cullmann
Cc: #frameworks, michaelh, kevinapavew, ngraham, demsking, cullmann, sars, dhaumann
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