D20881: KCalCore Clazy fixes

[Allen Winter]

winterz created this revision.
winterz added reviewers: vkrause, mlaurent.
Herald added a project: KDE PIM.
Herald added a subscriber: kde-pim.
winterz requested review of this revision.

REVISION SUMMARY
  Not all issued reported in 'level1' checks are here, but this is most of them.
  
  notice I also re-wrote the recurrence code in vcalformat... clazy led me there and I didn't like the what I saw so I improved the code.

TEST PLAN
  'make test' on my linux system still works

REPOSITORY
  R172 KCalendar Core

REVISION DETAIL
  https://phabricator.kde.org/D20881

AFFECTED FILES
  src/alarm.cpp
  src/calendar.h
  src/icalformat_p.cpp
  src/occurrenceiterator.cpp
  src/person.cpp
  src/person.h
  src/recurrence.cpp
  src/recurrencerule.cpp
  src/vcalformat.cpp

To: winterz, vkrause, mlaurent
Cc: kde-pim, dvasin, rodsevich, winterz, vkrause, mlaurent, knauss, dvratil
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