Bringing in the latest Sizzle code.

diff --git a/src/sizzle b/src/sizzle
index 80f2b81d1fbc13d62afb91cb87e1452fbbec1ef4..c50b0cddec48494ba882606d03e14cce647d243b 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 80f2b81d1fbc13d62afb91cb87e1452fbbec1ef4
+Subproject commit c50b0cddec48494ba882606d03e14cce647d243b