Bump rust-phf version

sfackler · sfackler · commit 81f19d9b39ac · 2014-04-17T21:06:30.000-07:00
diff --git a/submodules/rust-phf b/submodules/rust-phf
@@ -1 +1 @@
-Subproject commit 9393582a8cc716749f6b6285cb33285a5fa20bce
+Subproject commit b3dca5e9492b649471fd9fee6225314d57799335
