filebuf.cc: Tweak.

filebuf.cc: Tweak.

2000-06-28  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

	* testsuite/27_io/filebuf.cc: Tweak.
	* testsuite/27_io/filebuf_members.cc (test_01): Fix.
	* config/c_io_libio.cc (__basic_file::~__basic_file): Match libio
	filebuf dtor.
	(__basic_file::basic_file): Clean, add calls similar to
	_IO_file_attach.
	(__basic_file::open): Clean.
	(__basic_file::sys_open): Clean.

	* bits/std_fstream.h: Revert.
	* bits/fstream.tcc (filebuf::close()): Revert.
	(filebuf::basic_filebuf()): Revert.

From-SVN: r34786