[libvirt] [PATCH] maint: update to latest gnulib

[Eric Blake]

Fix a regression in checking for realpath (which caused link
failures regarding duplicate rpl_canonicalize_file_name), and
fix the mingw build regarding unsetenv.

* .gnulib: Update to latest.

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

Fixes the reported failure with canonicalize_file_name,
but there's still the issue of new gcc warnings enabled
which affect F24 with its newer gcc.

 .gnulib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

* .gnulib 8d807a9...246b3b2 (3):
> canonicalize: Fix broken probe for realpath.
> unsetenv: relax to LGPLv2+
> update from texinfo

diff --git a/.gnulib b/.gnulib
index 8d807a9..246b3b2 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit 8d807a99c6e8eecd2a9cf7c7b5d48ec0b2c934f8
+Subproject commit 246b3b28808ee5f4664be674dce573af9497fc7a
-- 
2.5.5