[dlg] Update submodule to upstream's current master.
diff --git a/submodules/dlg b/submodules/dlg
index 9f0c8b2..6e83f63 160000
--- a/submodules/dlg
+++ b/submodules/dlg
@@ -1 +1 @@
-Subproject commit 9f0c8b221a49bd9581bdb9b79c6393c956ddc8eb
+Subproject commit 6e83f637efd10b736350496c565c24a86a98b07b