D26799: Apply KDE coding style, minor optimizations

[Alexander Lohnau]

alex created this revision.
alex added reviewers: ngraham, meven.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
alex requested review of this revision.

REVISION SUMMARY
  The affected files have been reformatted following the KDE coding style (this makes up most of the changes).
  kcm.cpp: The config.setFirstRun method calls have been simplified (line 103) and the defaultFolders function is now inline.
  filterfoldermodel.cpp: Use const references for the mount points (folderDisplayName method, line 204), simplify if statement in shouldShowMountPoint (line 223) and remove unnecessary return in data method.

TEST PLAN
  Should work as before

REPOSITORY
  R119 Plasma Desktop

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D26799

AFFECTED FILES
  kcms/baloo/fileexcludefilters.cpp
  kcms/baloo/filteredfoldermodel.cpp
  kcms/baloo/kcm.cpp

To: alex, ngraham, meven
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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