gnulib: update

diff --git a/gnulib b/gnulib
index 7585eb3f16ab1e83f1d46ed5bb243488d8c34228..ea6cb044ca0ab57045900a494a0e4ae39ed5372c 160000 (submodule)
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit 7585eb3f16ab1e83f1d46ed5bb243488d8c34228
+Subproject commit ea6cb044ca0ab57045900a494a0e4ae39ed5372c