2004-01-21  Paolo Carlini  <pcarlini@suse.de>

	* include/bits/basic_string.tcc (append(const basic_string&)):
	Revert previous change.
	(append(const basic_string&, size_type, size_type)): Revert
	previous change, use _M_check and _M_limit.

From-SVN: r76282