[conformal/btcd] d26988: Put mutexes in exported functions.

[David Hill]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcd
  Commit: d269887c56c2d2654e197972a0fa7b63e500925b
      
https://github.com/conformal/btcd/commit/d269887c56c2d2654e197972a0fa7b63e500925b
  Author: David Hill <dh...@conformal.com>
  Date:   2014-07-10 (Thu, 10 Jul 2014)

  Changed paths:
    M addrmgr/addrmanager.go

  Log Message:
  -----------
  Put mutexes in exported functions.