Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode.

Patch by Mikhail Novikov.

diff --cc Misc/ACKS
Simple merge

diff --cc Misc/NEWS
index 07599ade678056add6d230cf2e362322113241e2,d8dbe791d496d7c536665473a779adbfeb0a67aa..6214d1ef8e9c55815c26299643aa1ee641273b95
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -508,9 -127,9 +508,12 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode.
+   Patch by Mikhail Novikov.
+ 
 +- Issue #11841: Fix comparison bug with 'rc' versions in packaging.version.
 +  Patch by Filip Gruszczyński.
 +
  - Issue #13447: Add a test file to host regression tests for bugs in the
    scripts found in the Tools directory.