helo_argument IP should be encapsulated in []'s
helo_argument IP should be encapsulated in []'s

This is a patch proposed by Chris Knadle chris.knadle@coredump.us
to make torbirdy compliant with RFC 5821 §4.1.3.
Also see Debian bug:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812115

Also look at which has a related issue:
https://trac.torproject.org/projects/tor/ticket/13006

ioerror/torbirdy,kartikm/torbirdy,kartikm/torbirdy,infertux/torbirdy,u451f/torbirdy,ioerror/torbirdy,u451f/torbirdy,infertux/torbirdy