In the man pages of tcplife and tcpstates, the name of the field for
the remote port and address (DPORT, DADDR) differs from the tool
itself (RPORT, RADDR). This patch fix the man pages.

The man page of tcpdrop mentions options that do not exists. This
patch fix that. It also fix the comment at the head of the code that
too mentions inexistents options.

The man pages for solisten and sofdsnoop are missing. This patch adds
them.

The deadlock_detector tools has been rename simply deadlock, but its
manpage is still named deadlock_detector although its content has been
updated. This patch rename the manpage.