[Ddclient-support] [ddclient/ddclient] 9ac749: Add is_ipv4() and ipv4_match() functions

[David K. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/ddclient/ddclient
  Commit: 9ac7497973c6c7fc543b2f06d446e3e657c420af
      https://github.com/ddclient/ddclient/commit/9ac7497973c6c7fc543b2f06d446e3e657c420af
  Author: David Kerr <da...@ke...>
  Date:   2020-06-29 (Mon, 29 Jun 2020)

  Changed paths:
    M ddclient

  Log Message:
  -----------
  Add is_ipv4() and ipv4_match() functions