Sync typeshed (#3697)

gvanrossum · web-flow · commit 3f5649aaaa31 · 2017-07-11T13:12:40.000-07:00
diff --git a/typeshed b/typeshed
@@ -1 +1 @@
-Subproject commit 0e26c1f9361bd2d57b9f361c4fbd8185243afb21
+Subproject commit 47b3979a839f5b30ee3462cb4ffaa6bc4e788dcb
