build: update gnulib submodule to latest

author Paul Eggert <eggert@cs.ucla.edu>

Tue, 1 May 2018 19:15:22 +0000 (12:15 -0700)

committer Paul Eggert <eggert@cs.ucla.edu>

Thu, 3 May 2018 20:04:14 +0000 (13:04 -0700)
author Paul Eggert <eggert@cs.ucla.edu>
Tue, 1 May 2018 19:15:22 +0000 (12:15 -0700)
committer Paul Eggert <eggert@cs.ucla.edu>
Thu, 3 May 2018 20:04:14 +0000 (13:04 -0700)
diff --git a/gnulib b/gnulib

index 59e59d99bc1ca635d178778b9b4ee544330775c4..81acba941a158525a3a8b976cb74e59c8cde1b74 160000 (submodule)
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit 59e59d99bc1ca635d178778b9b4ee544330775c4
+Subproject commit 81acba941a158525a3a8b976cb74e59c8cde1b74
author	Paul Eggert <eggert@cs.ucla.edu>
	Tue, 1 May 2018 19:15:22 +0000 (12:15 -0700)
committer	Paul Eggert <eggert@cs.ucla.edu>
	Thu, 3 May 2018 20:04:14 +0000 (13:04 -0700)