D16167: Instead of copying and clearing the file list, just move it

[Stefan Brüns]

bruns added a comment.


  `auto runnable = new NewFileIndexer(m_db, m_config, std::exchange(m_newFiles, 
{}));` would work, but that is C++14

REPOSITORY
  R293 Baloo

REVISION DETAIL
  https://phabricator.kde.org/D16167

To: bruns, #baloo, #frameworks, poboiko
Cc: kde-frameworks-devel, ashaposhnikov, michaelh, astippich, spoorun, ngraham, 
bruns, abrahams