build: update gnulib to latest

* gnulib: Update submodule to latest.
* bootstrap.conf (gnulib_modules): Add explicit dependency on dirname-lgpl.
Before, we pulled this in via a dependency.
* bootstrap: Update from gnulib.

1 files changed, 2 insertions, 2 deletions

diff --git a/bootstrap b/bootstrap
index 70fd73cc..8f76d696 100755
--- a/bootstrap
+++ b/bootstrap
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2019-01-04.17; # UTC
+scriptversion=2020-04-13.15; # UTC
 
 # Bootstrap this package from checked-out sources.
 
@@ -970,7 +970,7 @@ bootstrap_post_import_hook \
 # Uninitialized submodules are listed with an initial dash.
 if $use_git && git submodule | grep '^-' >/dev/null; then
   die "some git submodules are not initialized. "     \
-      "Run 'git submodule init' and bootstrap again."
+      "Run 'git submodule update --init' and bootstrap again."
 fi
 
 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some