Add sys.flags.quiet attribute for the new -q option, as noted missing by Eric in #1772833.
diff --git a/Misc/NEWS b/Misc/NEWS
index 674ae64..f69abcf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,6 +15,8 @@
 - Issue #10779: PyErr_WarnExplicit() decodes the filename from the filesystem
   encoding instead of UTF-8.
 
+- Add sys.flags attribute for the new -q command-line option.
+
 Library
 -------