[btcsuite/btcd] dea7ef: Ignore getaddr requests from outbound peers.

[David Hill]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: dea7ef364c1a56e0313d275770d80efa22fa90fc
      
https://github.com/btcsuite/btcd/commit/dea7ef364c1a56e0313d275770d80efa22fa90fc
  Author: David Hill <dh...@mindcry.org>
  Date:   2015-04-14 (Tue, 14 Apr 2015)

  Changed paths:
    M peer.go

  Log Message:
  -----------
  Ignore getaddr requests from outbound peers.

This change reduces fingerprinting attacks and
mimics Bitcoin Core commit
dca799e1db6e319fdd47e0bfdb038eab0efabb85