refresh libusual

diff --git a/lib b/lib
index 610a5a9f0de5308e617e96910abf0aa3e453a83c..0c3aba53cf6105acbf4a82b73ae4143afae3c249 160000 (submodule)
--- a/lib
+++ b/lib
@@ -1 +1 @@
-Subproject commit 610a5a9f0de5308e617e96910abf0aa3e453a83c
+Subproject commit 0c3aba53cf6105acbf4a82b73ae4143afae3c249