- 'get-host-names true;' now also works even if 'use-host-decl-names true;'

- 'get-host-names true;' now also works even if 'use-host-decl-names true;'
  was also configured.  The nature of this repair also fixes another
  error; the host-name supplied by a client is no longer overridden by a
  reverse lookup of the lease address.  Thanks to a patch from Wilco Baan
  Hofman supplied to us by the Debian package maintenance team.
  [ISC-Bugs #21691] {Debian Bug#509445}