in tokenize.detect_encoding(), return utf-8-sig when a BOM is found
diff --git a/Misc/NEWS b/Misc/NEWS
index 01c37ce..f1b068b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -283,6 +283,9 @@
 Library
 -------
 
+- ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is
+  detected.
+
 - Issue #8024: Update the Unicode database to 5.2.
 
 - Issue #6716/2: Backslash-replace error output in compilall.