Fixed PB failures on IA64 hosts introduced by the patch for bug #21205.

mysql-test/t/gis.test:
  IA64 gcc backend lacks -fno-fused-madd option, so we have to adjust results.

mysql-test/t/gis.test

@@ -355,6 +355,9 @@ insert into t1 values ('85984',GeomFromText('MULTIPOLYGON(((-115.006363
 select object_id, geometrytype(geo), ISSIMPLE(GEO), ASTEXT(centroid(geo)) from
 t1 where object_id=85998;
 
+# Expected result is 36.3310176346905, but IA64 returns 36.3310176346904
+# due to fused multiply-add instructions.
+--replace_result 36.3310176346904 36.3310176346905
 select object_id, geometrytype(geo), ISSIMPLE(GEO), ASTEXT(centroid(geo)) from
 t1 where object_id=85984;