Reenable test_ucs4 and remove some duplicated lines.
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py
index d81b153..4c6515b 100644
--- a/Lib/test/string_tests.py
+++ b/Lib/test/string_tests.py
@@ -1131,7 +1131,7 @@
             format = '%%.%if' % prec
             value = 0.01
             for x in range(60):
-                value = value * 3.141592655 / 3.0 * 10.0
+                value = value * 3.14159265359 / 3.0 * 10.0
                 self.checkcall(format, "__mod__", value)
 
     def test_inplace_rewrites(self):