* subversion/libsvn_client/blame.c
  (blame, diff_baton, blame_create, blame_insert_range): Constify the 'rev' pointer.
  (add_file_blame): Fix doc string.
  (window_handler, file_rev_handler): Write doc strings.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1438937 13f79535-47bb-0310-9956-ffa450edef68