MFC: r179490
MFC: r179490

  Sort IP addresses before hashing them for the signature.  Otherwise carp
  is sensitive to address configuration order.

  PR:			kern/121574
  Reported by:		Douglas K. Rand, Wouter de Jong
  Obtained from:	OpenBSD (rev 1.114 + fixes)

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