Update 'sweep' submodule

diff --git a/sweep b/sweep
index 1038b79b27be02090a6fa302426fc8d3a95ea2ca..84e79a916318852ee6c00701a081065c01497e41 160000 (submodule)
--- a/sweep
+++ b/sweep
@@ -1 +1 @@
-Subproject commit 1038b79b27be02090a6fa302426fc8d3a95ea2ca
+Subproject commit 84e79a916318852ee6c00701a081065c01497e41