Add more manual pages which were not spotted previously in 0a0f748641
Ideally to be MFH'ed with:
8539518055 - Remove manpages from OLD_FILES
8b487b8292 - Fix bsd.subdir.mk-related issues after 0a0f748641f6043a6721 - ObsoleteFiles.inc: Remove manpages from OLD_FILES
0a0f748641 - man: Build manpages for all architectures
There is at least one pending issue when building with -DNO_ROOT.
Reported by: ceri@
MFH: 4 weeks
Discussed with: wosch
Differential Revision: https://reviews.freebsd.org/D31018