v9.34

9.34 - Released 12/18/2023

• Added an optional localnicip=local.nic.ip.address argument
  to hexterm, to better support sending IPv4 multicast packets.
• Added a B_SHUTTING_DOWN error code, useful for returning
  from Thread::MessageReceivedFromOwner() overrides if there
  isn't any real error but the internal thread is exiting on
  request.
• Added a templated GetConstRefToDefaultObjectForType()
  convenience function to util/RefCount.h
• Added a GetHardLinkCount() method to the FilePathInfo class.

• Modified IsRegexToken() to return false for '-', since
  hyphens aren't meaningful except in the context of
  "character class" regex tokens (which will get escaped anyway).
• Replaced the IsHosed() and SetHosed() methods of the
  AbstractMessageIOGateway class with more descriptive methods
  GetUnrecoverableErrorStatus() and SetUnrecoverableErrorStatus().