[zanata/zanata-scripts] da88c1: Use envBuf

[GitHub]

  Branch: refs/heads/ZNTA-1803-maven-release-pipeline
  Home:   https://github.com/zanata/zanata-scripts
  Commit: da88c1dabe7d014073f778929b960ee4bd9d03be
      https://github.com/zanata/zanata-scripts/commit/da88c1dabe7d014073f778929b960ee4bd9d03be
  Author: Ding-Yi Chen <dchen at redhat.com>
  Date:   2018-01-24 (Wed, 24 Jan 2018)

  Changed paths:
    M jenkins/maven-Jenkinsfile

  Log Message:
  -----------
  Use envBuf