Update clippy

Manishearth · Manishearth · commit cd70153e28b3 · 2018-08-03T10:16:07.000-07:00
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit 8ef759e0273ad97f1acbb1ea9f94322aa2a20147
+Subproject commit dde49f34a8c48981ce337f681f90c1e3b05e05ca
