Fix distutils byte-compilation to comply with PEP 3147 (#11254).

Patch by Jeff Ramnani.  Tested with -B, -O and -OO.
diff --git a/Misc/NEWS b/Misc/NEWS
index e9555b3..a55fcb3 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -43,6 +43,9 @@
 Library
 -------
 
+- Issue #11254: Teach distutils to compile .pyc and .pyo files in
+  PEP 3147-compliant __pycache__ directories.
+
 - Issue #7367: Fix pkgutil.walk_paths to skip directories whose
   contents cannot be read.