[boost] Filesystem documentation error

The documentation to filesystem is outstanding. Congratulation Mr. Dawes ! I did find an error, however. In the class documentation to path.hpp there are two default_name_check member functions. In the specific documentation for default_name_check, there is only a single default_name_check mentioned and the return value in the declaration of the specific documentation has 'void' even while the "Returns:" says otherwise and correctly matches the return value given for either one of the default_name_checks given in the class documentation.