update threads.

diff --git a/mod/threads b/mod/threads
index eeabbfc0f70ef4c08e5b3c6f3228c83645505a5f..d6c2d785f5e736cc5600fd732abfc3666eceebfc 160000 (submodule)
--- a/mod/threads
+++ b/mod/threads
@@ -1 +1 @@
-Subproject commit eeabbfc0f70ef4c08e5b3c6f3228c83645505a5f
+Subproject commit d6c2d785f5e736cc5600fd732abfc3666eceebfc