[btcsuite/btcd] f89355: Minor correction to GenerateSharedSecret documenta...

[Nathan Bass]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: f893558d782396f10c2fe49a8bc73deff4a36d14
      
https://github.com/btcsuite/btcd/commit/f893558d782396f10c2fe49a8bc73deff4a36d14
  Author: Nathan Bass <ingcr3at...@users.noreply.github.com>
  Date:   2016-05-14 (Sat, 14 May 2016)

  Changed paths:
    M btcec/ciphering.go

  Log Message:
  -----------
  Minor correction to GenerateSharedSecret documentation. (#696)