[zanata/zanata-platform] b363d3: fix(ZNTA-2015): Use blank instead of empty

[GitHub]

  Branch: refs/heads/admin-change-fullname
  Home:   https://github.com/zanata/zanata-platform
  Commit: b363d3b5854ebf79bc6a87586ed85c14b19f598e
      https://github.com/zanata/zanata-platform/commit/b363d3b5854ebf79bc6a87586ed85c14b19f598e
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2017-05-31 (Wed, 31 May 2017)

  Changed paths:
    M server/zanata-war/src/main/java/org/zanata/action/UserAction.java

  Log Message:
  -----------
  fix(ZNTA-2015): Use blank instead of empty