* notes/api-errata/1.9/fs001.txt
  (): Fix confusing inefficient/efficient typo and improve wording
      in a couple of more places.

Found by: rhuijben

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1618895 13f79535-47bb-0310-9956-ffa450edef68