[conformal/btcd] 88093c: Use NewMsgInvSizeHint since we know the size.

[David Hill]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcd
  Commit: 88093cb83819a20603e719a40b67d014bc985d4a
      
https://github.com/conformal/btcd/commit/88093cb83819a20603e719a40b67d014bc985d4a
  Author: David Hill <dh...@conformal.com>
  Date:   2014-04-19 (Sat, 19 Apr 2014)

  Changed paths:
    M peer.go

  Log Message:
  -----------
  Use NewMsgInvSizeHint since we know the size.

ok @davecgh