RPM update / Find orphaned *.rpmnew, *.rpmsave or *.rpmorig files

Next project in git: find_orphaned_rpm_etc_files

Finds orphaned rpm files under /etc like *.rpmnew, *.rpmsave or *.rpmorig automatically generated by rpm on update. RPM created these files if a software update has taken place and it cannot update the configuration files itself. These files need to be solved by root manually.