Tweak a bit of code for improved documentation. No functional changes.

* subversion/libsvn_subr/win32_crashrpt.c
  (convert_wbcs_to_utf8): Rename static function to...
  (convert_wbcs_to_ansi): ... this, to document what it really does.
    As this is the desired behavior, all we have to do is...
  (write_module_info_callback,
   format_value): Update callers.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1603826 13f79535-47bb-0310-9956-ffa450edef68