* tools/dist/backport.pl
  ($AVAILID): Avoid leaving an unclosed filehandle USERNAME, since that
    leads to confusing tracebacks in warn/die calls (seen in warn-based
    printf debugging).

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1511639 13f79535-47bb-0310-9956-ffa450edef68