Test cases from Cowlishaw, v2.57. All are pased cleanly.
diff --git a/Lib/test/decimaltestdata/tointegral.decTest b/Lib/test/decimaltestdata/tointegral.decTest
index ad25e6b..340515c 100644
--- a/Lib/test/decimaltestdata/tointegral.decTest
+++ b/Lib/test/decimaltestdata/tointegral.decTest
@@ -17,7 +17,7 @@
 --   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
 --   mfc@uk.ibm.com                                                   --
 ------------------------------------------------------------------------
-version: 2.56
+version: 2.57
 
 -- This set of tests tests the extended specification 'round-to-integral
 -- value' operation (from IEEE 854, later modified in 754r).