Update clippy

Manishearth · Manishearth · commit ebf731c638c5 · 2019-10-17T16:59:10.000-07:00
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit 52cebb1f8f8789b97d243c07bf4c961ca0017f7b
+Subproject commit e979eb4cc55ffd357158c7d30133cbf894e93fe9
