build: update gnulib submodule to latest

[libguestfs.git] / .gnulib

diff --git a/.gnulib b/.gnulib
index b5104eb..a722f99 160000 (submodule)
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit b5104eb4ff3b34f51ffd22d83e45477f134361e4
+Subproject commit a722f9972c6fe3afde2951b3ebb1cbdc14e973a1