gnulib: update

diff --git a/gnulib b/gnulib
index d44c524ba7dfa9c0f7e10148e61e8bda9551c52e..7585eb3f16ab1e83f1d46ed5bb243488d8c34228 160000 (submodule)
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit d44c524ba7dfa9c0f7e10148e61e8bda9551c52e
+Subproject commit 7585eb3f16ab1e83f1d46ed5bb243488d8c34228