Update Sizzle: small regex fix

diff --git a/src/sizzle b/src/sizzle
index d41763d292536d0bb81cd97719ab0b219c10af5d..e64167b3375fd546e311953dd931212b9a91f902 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit d41763d292536d0bb81cd97719ab0b219c10af5d
+Subproject commit e64167b3375fd546e311953dd931212b9a91f902