Log Message:
xdm: update to 1.1.17.

Support for using getaddrinfo(), inet_ntop(), and struct sockaddr_storage
was originally added to support IPv6, and only used if IPv6 support was
enabled. Two decades later, these interfaces are ubiquitous and OS'es have
starting marking the old interfaces as deprecated, so this release changes
to use the modern interface whenever we can now.  (Note that code included
from xtrans will only use these interfaces when IPv6 is disabled if building
against xtrans 1.6.0 or later.)

Alan Coopersmith (5):
      Simplify ifdefs for IPv6 support
      if getaddrinfo() is available, use it, even if IPv6 support is disabled
      if sockaddr_storage is available, use it, even if IPv6 support is disabled
      if inet_ntop() is available, use it, even if IPv6 support is disabled
      xdm 1.1.17