Expect the t_precision long double checks to fail on FreeBSD/i386

There are some potential issues with the test (as brd@ has pointed out
elsewhere) with precision, etc not being set before the test, but as
always, more research is required.

contrib/netbsd-tests/lib/libm/t_precision.c

@@ -73,6 +73,11 @@ ATF_TC_BODY(t_precision, tc)
 
 ATF_TP_ADD_TCS(tp)
 {
+#ifdef	__FreeBSD__
+#ifdef	__i386__
+	atf_tc_expect_fail("the __HAVE_LONG_DOUBLE checks fail on i386");
+#endif
+#endif
 	ATF_TP_ADD_TC(tp, t_precision);
 
 	return atf_no_error();