Add two new files and update remaining tests from the latest update of the
test suite in version 2.39 of dectest.zip.
diff --git a/Lib/test/decimaltestdata/squareroot.decTest b/Lib/test/decimaltestdata/squareroot.decTest
index c83bd2b..0c83cc7 100644
--- a/Lib/test/decimaltestdata/squareroot.decTest
+++ b/Lib/test/decimaltestdata/squareroot.decTest
@@ -17,7 +17,7 @@
-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
-- mfc@uk.ibm.com --
------------------------------------------------------------------------
-version: 2.38
+version: 2.39
extended: 1
precision: 9