Do not attempt to do AF-specific configurations on a interface when noafif() is true.  The following warning message was displayed when pflog0 interface existed, for example:
Do not attempt to do AF-specific configurations on a interface when
noafif() is true.  The following warning message was displayed when
pflog0 interface existed, for example:

 ifconfig: ioctl(SIOCGIFINFO_IN6): Protocol family not supported

Reported by:	bz
Approved by:	re (gjb)

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase