Sync libusual

diff --git a/lib b/lib
index f87b78edee3296ed6451a0bd03eeb12adddac810..f92caddeaa969357eb33804e1ac308e9fc7014a0 160000 (submodule)
--- a/lib
+++ b/lib
@@ -1 +1 @@
-Subproject commit f87b78edee3296ed6451a0bd03eeb12adddac810
+Subproject commit f92caddeaa969357eb33804e1ac308e9fc7014a0