There are some zero-length documentation files for the geanyvc and geanylipsum subprojects.
I detected this while packaging RPM files. Output of rpmlint:
geany-plugins.x86_64: E: zero-length /usr/share/doc/geany-plugins/geanyvc/AUTHORS
geany-plugins.x86_64: E: zero-length /usr/share/doc/geany-plugins/geanyvc/ChangeLog
geany-plugins.x86_64: E: zero-length /usr/share/doc/geany-plugins/geanylipsum/AUTHORS
Two ideas to solve this:
1. Just fill the mentioned files with content, even if it is one line and maybe a hint, that there is no content or a hint where to get more information
2. delete those files and create some general documentation files, e.g. just one AUTHORS file for the whole geany-plugins project. (This would be a good use case for using restructeredText)