From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1093201:
Whilst working on the Reproducible Builds effort [0], we noticed that
rsync could not be built reproducibly.
This is because the date in the manual page can vary depending on
whether there is a .git directory and the modification time of version.h
and Mafile, which might get modified when patching via quilt.
A patch is attached that makes this use SOURCE_DATE_EPOCH, which
will always be reliable.
- Add link targets for all option choices, not just the first one.
- Tweak cross-link arg format.
- Add more links, including some in the latest NEWS.
- Split out a few numbered lists.
- Improve NEWS heading's link targets using version info.
- Optimize regex compilation.
- Make sure every link target is unique.
- Allow link targets to start with a number.
