Log Message:
Avoid a crash on NetBSD when not every minion is present

From the pull request pending, #31320:

  On NetBSD, Salt currently defaults to using lsof(8) to determine which
  minions are connected. It is however not always available, and even
  then quite unreliable. I found that just like on FreeBSD, sockstat(1)
  is a much safer alternative. Unfortunately its output is not exactly
  the same on NetBSD, where the port delimiter is a dot character
  instead. As a consequence I have decided to duplicate the relevant
  function for NetBSD; let me know if I should try to re-use the code
  supporting FreeBSD instead.

See also https://github.com/saltstack/salt/pull/31230.