Update 'sweep' submodule

diff --git a/sweep b/sweep
index f03d7ee380b9c1abc37b5ad747fc9dd7422a072c..8eac70fba4a37c3124fa0fe32d96f06c747a7469 160000 (submodule)
--- a/sweep
+++ b/sweep
@@ -1 +1 @@
-Subproject commit f03d7ee380b9c1abc37b5ad747fc9dd7422a072c
+Subproject commit 8eac70fba4a37c3124fa0fe32d96f06c747a7469