Log Message:
Update net/openslp to 1.0.9a.  Changes from version 1.0.7 include:

* Added version and length sanity checks for incoming messages
* Fixed possible SEGV when logging DA traffic
* Added patch from Arun Barboza that makes attribute compares case insensitive
  as per RFC 2608
* Added patch from Garth Bushell that fixes an SLP url parsing problem.
* Added patch from Arun Barboza to handle '==' SLPv1 predicates.  This patch
  allows better interoperability with Novell SLP networks.
* Added fix from Arun Barboza to make V1 DAAdverts use the same encoding as
  the request
* Fixed a problem in SLPProcessMessage where errorcodes were not being returned
  resulting in attempts to send non-allocated sendbufs (i.e. SEGV).
* Fixed a problem where SLPReg() would hang if used against a DA or SA that
  prematurely dropped connections
* Force use of numeric IP addresses in all DAAdvert and SAAdvert messages.
* Fixed bug where idle connections to DAs were not being aged.
* Added code so that 'slptool -v' will return the path of the slp.conf file
  libslp.so is configured to use.