bpo-17188: DOC: Document 'from None' in raise statement (#1671)

Original patch by Dennis MÃ¥rtensson.

diff --git a/Misc/ACKS b/Misc/ACKS
index 246a50b..d00fa79 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -965,6 +965,7 @@
 Doug Marien
 Sven Marnach
 Alex Martelli
+Dennis Mårtensson
 Anthony Martin
 Owen Martin
 Sidney San Martín