* subversion/libsvn_subr/io.c
  (svn_io_file_flush_to_disk): Add note.
  (svn_io_write_unique): Differentiate file flush behavior on whether the file
    is temporary or not.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1483999 13f79535-47bb-0310-9956-ffa450edef68