[PATCH] build: update gnulib submodule to latest

[Pádraig Brady]

* gnulib: Update to latest. This fixes a gnulib test failure in base64,
among other fixes.
* cfg.mk: Disable sc_indent as it's too invasive for now.
---
 cfg.mk | 3 ++-
 gnulib | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/cfg.mk b/cfg.mk
index de198d992..3b76f7f7e 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -26,7 +26,8 @@ VC_LIST_ALWAYS_EXCLUDE_REGEX = src/blake2/.*$$
 
 # Tests not to run as part of "make distcheck".
 local-checks-to-skip = \
-  sc_proper_name_utf8_requires_ICONV
+  sc_proper_name_utf8_requires_ICONV \
+  sc_indent
 
 # Tools used to bootstrap this package, used for "announcement".
 bootstrap-tools = autoconf,automake,gnulib,bison
diff --git a/gnulib b/gnulib
index 452e8a8f7..b6bae60d8 160000
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit 452e8a8f7b07a794b1de3813062a992509f5c0c9
+Subproject commit b6bae60d83eda6b168368fa40f42ade9dfc86df0
-- 
2.26.2