Link to xgethostname broken at the porting guidelines page

[Svante Signell]

Hi,

When porting packages, is replacing a call to gethostname using
MAXHOSTNAMELEN with a call to Neal Walfields xgethostname still the
recommended way, as described at
http://www.gnu.org/software/hurd/hurd/porting/guidelines.html

If so, maybe the link to that function should be corrected. Currently it
is broken. In case is is not immediately found there is a copy of
xgethostname.{c,h} at:
http://lists.mindrot.org/pipermail/openssh-unix-dev/2002-April/012248.html