As discussed on irc:

22:37 < Mithrandir> Kamion: if you run man getopt, say, it will match
                    both getopt(1), getopt(3) and getopt(3perl).  How
                    hard would it be to feed those three files to
                    $PAGER as separate files so one could :n and :p in
                    less to read them?
22:41 < Kamion> Mithrandir: in theory probably not too hard, but it
                might need some code rearrangement
22:42 < Kamion> Mithrandir: with some of the recent stuff I've done it
                should be significantly less hard than in man-db 2.3,
                where it would've been all but impossible
22:42 < Mithrandir> Kamion: want it as a wishlist bug?  it would be
                    cool to have.
22:42 < Kamion> Mithrandir: sure, sounds god
22:42 < Kamion> er, good