Update 'sweep' submodule

diff --git a/sweep b/sweep
index 2603c88e4556aab8e94be704aa621cd0e3390ebf..1e718510d6d9b121512ace8c43a9894e04b5f8f2 160000 (submodule)
--- a/sweep
+++ b/sweep
@@ -1 +1 @@
-Subproject commit 2603c88e4556aab8e94be704aa621cd0e3390ebf
+Subproject commit 1e718510d6d9b121512ace8c43a9894e04b5f8f2