On the invoke-diff-cmd branch: Update BRANCH-README file.  Typo fix in
io.c.

* BRANCH-README:  Add a selection of salient log messages.

* subversion/libsvn_subr/io.c:
  (__create_custom_diff_cmd): remove extra semi-colon.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/invoke-diff-cmd-feature@1531588 13f79535-47bb-0310-9956-ffa450edef68