security/obfs4proxy-tor: Update pkg-message Update pkg-message to reflect obfs4's man page, obfs4 works only as managed pluggable transport spawned as a helper process via the tor daemon, and needs no extra options to operate in such mode. Also fix a typo and a white space. PR: 225068 Submitted by: VinÃcius Zavam <egypcio@googlemail.com> (maintainer)