submodules: update clippy from be5d17f to 868f168

matthiaskrgr · matthiaskrgr · commit 6a084dc0e762 · 2019-06-18T15:43:41.000+02:00
Changes: ```` rustup rust-lang#61836 fix suggestion for floating points inequality ````
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit be5d17feb20534d503c49722beecf5501d5d9c3a
+Subproject commit 868f168c1c5fa9f19c922f3b0ba5be3980f6b0a9
