[zanata/zanata-client] 104d0b: doc(CONTRIBUTING): fix checkstyle error

[GitHub]

  Branch: refs/heads/contributing
  Home:   https://github.com/zanata/zanata-client
  Commit: 104d0b4c32ba480febcb334c53c344c22bd8319a
      https://github.com/zanata/zanata-client/commit/104d0b4c32ba480febcb334c53c344c22bd8319a
  Author: Ding-Yi Chen <dingyichen at gmail.com>
  Date:   2016-02-24 (Wed, 24 Feb 2016)

  Changed paths:
    M CONTRIBUTING.md
    M zanata-cli/pom.xml

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