* subversion/include/private/svn_diff_tree.h
  (*): Add global description of the tree processor.

  (svn_diff_source_t): Add comment. Remove still unused local_abspath.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1446084 13f79535-47bb-0310-9956-ffa450edef68