build: update to latest gnulib

I hit a weird failure during 'make check', and traced it to a recent
gnulib regression in parallel test safety.  Pick up the gnulib fix.

* gnulib: Update to latest, to fix failure in getopt tests.

Signed-off-by: Eric Blake <eblake@redhat.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 572a6651..a852290e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2016-12-29  Eric Blake  <eblake@redhat.com>
 
+	build: update to latest gnulib
+	* gnulib: Update to latest, to fix failure in getopt tests.
+
 	maint: regenerate bootstrap
 	* bootstrap: Regenerate.
 
diff --git a/gnulib b/gnulib
-Subproject 8e63aebd5d3e398a986dcc5cfaaa5409bca30d1
+Subproject b366f53ec394e9886c60c851243af59952480a7