[Ddclient-support] [ddclient/ddclient] 8fcc9b: `group_hosts_by` improvements

[Sandro <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/ddclient/ddclient
  Commit: 8fcc9b0e2fddf3a0d9d15330893cb5af19da1538
      https://github.com/ddclient/ddclient/commit/8fcc9b0e2fddf3a0d9d15330893cb5af19da1538
  Author: Richard Hansen <rh...@rh...>
  Date:   2020-06-29 (Mon, 29 Jun 2020)

  Changed paths:
    M ddclient

  Log Message:
  -----------
  `group_hosts_by` improvements

  * Don't modify `$config{$h}{$v}` if variable `$v` for host `$h` is
    `undef`.
  * Tolerate the user passing `wantip` or duplicate keys.


  Commit: bfdf9454f0044b567b10b4f7dd62ed358749b2c5
      https://github.com/ddclient/ddclient/commit/bfdf9454f0044b567b10b4f7dd62ed358749b2c5
  Author: Sandro <san...@gm...>
  Date:   2020-06-29 (Mon, 29 Jun 2020)

  Changed paths:
    M ddclient

  Log Message:
  -----------
  Merge pull request #201 from rhansen/group_hosts_by

`group_hosts_by` improvements


Compare: https://github.com/ddclient/ddclient/compare/4f08d77cae15...bfdf9454f004