Fix NEWS entry for #15036

Misc/NEWS

@@ -45,9 +45,9 @@ Library
   non-standard iter_modules() method to be defined by an importer (something
   the importlib importers do not define).
 
-- Issue #15036: Allow removing or changing multiple items in
-  single-file mailboxes (mbox, MMDF, Babyl) flushing the mailbox
-  between the changes.
+- Issue #15036: Mailbox no longer throws an error if a flush is done
+  between operations when removing or changing multiple items in mbox,
+  MMDF, or Babyl mailboxes.
 
 - Issue #14059: Implement multiprocessing.Barrier.