[zanata/zanata-common] 8cc8fc: prevent exception trying to write out null header ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zanata/zanata-common
  Commit: 8cc8fcefcbdb3c90273d3201ef656bdfc5f0be86
      https://github.com/zanata/zanata-common/commit/8cc8fcefcbdb3c90273d3201ef656bdfc5f0be86
  Author: David Mason <dr.d.mason at gmail.com>
  Date:   2013-03-12 (Tue, 12 Mar 2013)

  Changed paths:
    M zanata-adapter-po/src/main/java/org/zanata/adapter/po/PoWriter2.java

  Log Message:
  -----------
  prevent exception trying to write out null header when mapping id to msgctxt