doslib update

diff --git a/src/lib/doslib b/src/lib/doslib
index 0a4e50d133c12ccd0a9399cddcbf9dad9b94c7c5..4970401064ed7de41b406dfad32c7095ae1cbfab 160000 (submodule)
--- a/src/lib/doslib
+++ b/src/lib/doslib
@@ -1 +1 @@
-Subproject commit 0a4e50d133c12ccd0a9399cddcbf9dad9b94c7c5
+Subproject commit 4970401064ed7de41b406dfad32c7095ae1cbfab