prefixcmd_enable was obsoleted by syncing recent KAME.  New prefix(8) is just a shell script for backward compatibility.  Now, we always use ifconfig(8) instead of prefix(8).
prefixcmd_enable was obsoleted by syncing recent KAME.  New prefix(8)
is just a shell script for backward compatibility.  Now, we always use
ifconfig(8) instead of prefix(8).

MFC after:	3 weeks

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