According to relicensecheck Brad is OK with changing LGPLv2 to LGPLv2+,
which is required to be compatible with the LGPL-2.1-or-later licensed
source files.
Tested with HDR images from hdrihaven.com
* Loading in KolourPaint works
* Thumbnails in Dolphin work
Reviewed by: aacid
Differential Revision: https://phabricator.kde.org/D23811
Frameworks have a convention of naming uninstalled headers in src/ with
a _p at the end of the name, to make it clear they are not part of the
API. None of the headers in KImageFormats are installed, so it is not
really necessary to follow this convention, but we follow it anyway for
the benefit of both humans and tools (like kapidox).
