actually initialize kcrash for xclipboardsync
Summary:
to successfully use kcrash when linking with as-needed (which is a default
flag on many linux distros) one also needs to call KCrash::initialize.
https://markmail.org/thread/zv5pheijaze72bzs
Test Plan: builds; correctly links kcrash
Reviewers: davidedmundson
Reviewed By: davidedmundson
Subscribers: kwin
Tags: KWin
Differential Revision: https://phabricator.kde.org/D16923