* Improve message display in find_file_in_dirlist()
* do_obsolete(): instead of running distrib/sets/makeobsolete to
temporarily generate the obsolete sets lists, look for them in
${SRC_DIR}/etc/obsolete/* or ${DEST_DIR}/etc/obsolete/*.
The obsolete check now works for "extracted etc.tgz" as the source dir.
etc/Makefile (install-etc-files), distrib/sets/lists/*
* Install obsolete set lists into /etc/obsolete/
* Tweak how pwd_mkdb files are added to METALOG
distrib/sets/makeobsolete
* Don't bother with "_obsolete" suffix on generated file names.
5c198ab018