get_in_tkt.c (make_preauth_list): Correctly null-terminate the

get_in_tkt.c (make_preauth_list): Correctly null-terminate the
	preauth list generated by make_preauth_list.

unparse.c (krb5_unparse_name_ext): Make unparse correctly handle all
	cases where a principal contains a nulls, backspace, newlines, or
	tabs.

t_kerb.c (test_parse_principal): Add test for checking krb5_parse_principal()

parse.c (krb5_parse_name): Set all of the magic field values.

Makefile.in, t_ref_kerb.out: Added new tests to test krb5_parse() and
	krb5_unparse().

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@9126 dc483132-0cff-0310-8789-dd5450dbe970