Changelog for opt-qt5-qtbase-examples-5.4.2-5.1.x86_64.rpm :

* Wed Aug 19 2015 freitagAATTowncloud.com- Get the subpackage names right, properly prefixed with opt-
* Tue Jul 28 2015 freitagAATTowncloud.com- Moved entire package to prefix /opt/qt-5.4 to not disturb distro packages. Also some cleanups of not needed stuff for private package.