specifying a whitespace separated list of addresses to -a (or
param.set listen_address).

I'm not sure about the error handling, for instance, what is the
desirable behaviour if one of multiple sockets fail to open ?

Suggested by: <darryl.dixon@winterhouseconsulting.com>



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1280 d4fa192b-c00b-0410-8231-f00ffab90ce4