apcupsd-3.10.18-r1 puts its man page in /usr/man/man8. It should be in /usr/share/man/man8. Reproducible: Always Steps to Reproduce: 1. Install apcupsd-3.10.18-r1 2. Observe that /usr/man/man8/apcupsd.8.bz2 gets created 3. Notice that all the other man pages for section 8 are in /usr/share/man/man8/
Been fixed in >=3.12.3 already, see Bug 179998 wrt stabilization.