[zanata/zanata-server] 47291a: doc(CONTRIBUTING): fix checkstyle error

[GitHub]

  Branch: refs/heads/contributing
  Home:   https://github.com/zanata/zanata-server
  Commit: 47291a17f3d0ffed9af5700a95caedf3fae04daa
      https://github.com/zanata/zanata-server/commit/47291a17f3d0ffed9af5700a95caedf3fae04daa
  Author: Ding-Yi Chen <dingyichen at gmail.com>
  Date:   2016-02-24 (Wed, 24 Feb 2016)

  Changed paths:
    M CONTRIBUTING.md

  Log Message:
  -----------
  doc(CONTRIBUTING): fix checkstyle error