* subversion/include/svn_io.h   (svn_io_open_unique_file2): ensure the function's docstring is clear     about how it opens the file -- read/write and not just read.
* subversion/include/svn_io.h
  (svn_io_open_unique_file2): ensure the function's docstring is clear
    about how it opens the file -- read/write and not just read.

Patch by: cacknin
Suggested by: glasser

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion