minor updates

diff --git a/plug b/plug
index 402bf847df73f3bec3f3802984726e5d3b766557..748e6a8c493dbb14c918558ac254acce7ea84bd1 160000 (submodule)
--- a/plug
+++ b/plug
@@ -1 +1 @@
-Subproject commit 402bf847df73f3bec3f3802984726e5d3b766557
+Subproject commit 748e6a8c493dbb14c918558ac254acce7ea84bd1