Update clippy

Manishearth · Manishearth · commit 33543ed12228 · 2019-10-15T13:52:34.000-07:00
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit 5cb983338e924ec85898880d60e65f2a1291b7be
+Subproject commit 52cebb1f8f8789b97d243c07bf4c961ca0017f7b
