Log Message:
Update net/openslp to 1.2.0.  Changes from version 1.0.11 include:

* Support for SLP queries on multiple network interfaces
* Support for SLP query through a unicast
* DHCP code
* Added support for the net.slp.DAHeartBeat setting
* Make attribute compares case insensitive as per RFC 2608
* Added PID monitoring.  Now when the process that called SLPReg()
  (with SLP_REG_FLAG_WATCH_PID) dies the registration will automatically
  be deregistered.

patch-a[cdefg] fix compilation warnings and errors (all the world is not
Linux/i386).