[libvirt] [PATCH v2 1/3] maint: update gnulib for syntax-check on BSD

[Eric Blake]

In particular, this incorporates Roman's patches to allow
'make syntax-check' to work on BSD with its exec argv
limitations that previously failed when trying to grep the
large number of files present in libvirt.

cfg.mk needs similar changes, but that will be tackled separately.

Signed-off-by: Eric Blake <eblake at redhat.com>
---
 .gnulib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gnulib b/.gnulib
index 4652c7bafa..70eb4687b1 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit 4652c7bafa60332145f1e05a7de5f48e1bc56226
+Subproject commit 70eb4687b1d84ae780bbf2b8141bee07c85e6d3b
-- 
2.20.1