locale_facets.tcc (num_put::_M_widen_int): Deal correctly with grouped, showbased (oct or hex) zero.

2002-09-27  Paolo Carlini  <pcarlini@unitus.it>

	* include/bits/locale_facets.tcc (num_put::_M_widen_int):
	Deal correctly with grouped, showbased (oct or hex) zero.
	* testsuite/22_locale/num_put_members_char.cc: Add test05.
	* testsuite/22_locale/num_put_members_wchar_t.cc: Ditto.

From-SVN: r57598