[zanata/zanata-platform] 3c9d59: fix warning

[GitHub]

  Branch: refs/heads/ZNTA-2216-review-admin-page
  Home:   https://github.com/zanata/zanata-platform
  Commit: 3c9d596d7924726614727a8101cac2ff53ad50c6
      https://github.com/zanata/zanata-platform/commit/3c9d596d7924726614727a8101cac2ff53ad50c6
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2017-10-09 (Mon, 09 Oct 2017)

  Changed paths:
    M server/services/src/main/java/org/zanata/rest/review/ReviewService.java

  Log Message:
  -----------
  fix warning