dncase(_c) DEPRECATED

	dncase(string.i1a.r [,nchar.i2.r])

	dncase_c(string.i1a.r [,nchar.i4.v])

	This routine scans an ASCII character string, converting all upper
	case characters to lower case.  The scan will continue until an
	ASCII null character is encountered, or until the optional
	character count 'nchar' is exhausted.

	string		ASCII buffer to convert
	[nchar]		number of characters to convert

	This function requires the following include files:

	clib_h

	Related functions:

	str_case_c, upcase(_c), window_up_case_c, window_down_case_c,
	menu_bar_upcase_entry_c, menu_bar_dncase_entry_c