Sync typeshed (#5549)

gvanrossum · web-flow · commit 2b15be3dd2d6 · 2018-08-31T11:05:18.000-07:00
diff --git a/typeshed b/typeshed
@@ -1 +1 @@
-Subproject commit 761b620e1a501a87ca5d2386ad52c3d27a0c45fe
+Subproject commit 5ed39dd8ce2501d849295c7d2ae84cec11460cf7
