Fix for #5257: refactored all tests in distutils, so they use a temporary directory.
diff --git a/Misc/NEWS b/Misc/NEWS
index 3c35413..e1778df 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -155,6 +155,9 @@
 Library
 -------
 
+- Issue #5257: refactored all tests in distutils, so they use 
+  support.TempdirManager, to avoid writing in the tests directory.
+
 - Issue #4524: distutils build_script command failed with --with-suffix=3.
   Initial patch by Amaury Forgeot d'Arc.