General simplification for compilers that don't support strict interop. Renamed "minus" -> "distance_from". [SVN r21973]
@@ -1 +1 @@
-Subproject commit 5f870d780dae97327f56a7260fcb3c49d69d5254
+Subproject commit 8480d452a9ca96c19a26a3353b9bdef12df55914
Dave Abrahams