upgrading package: sass 3.5.3 -> 3.5.4

sass/sass.spec

@@ -31,8 +31,8 @@ Distribution: OpenPKG Community
 Class:        EVAL
 Group:        Web
 License:      MIT
-Version:      3.5.3
-Release:      20171027
+Version:      3.5.4
+Release:      20171216
 
 #   list of sources
 Source0:      https://github.com/sass/sass/archive/%{version}.tar.gz