[PATCH 5/6] maint: explicitly copy fdl-1.3 from gnulib

* Makefile.am (update-gnulib-to-latest): Prompted by a probably
accidental difference between gnulib's fdl.texi and fdl-1.3.texi
(to be fixed in GNU standards first), change the command to
explicitly copy version 1.3 of the FDL.
* doc/fdl.texi: Update from 'gnulib/doc/fdl-1.3.texi'.

See https://lists.gnu.org/r/bug-standards/2020-08/msg00000.html
and https://lists.gnu.org/r/bug-gnulib/2020-07/msg00185.html
---
 Makefile.am  | 2 +-
 doc/fdl.texi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 7994a745..cad742a0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -109,7 +109,7 @@ gnulib-sync update-gnulib-to-latest:
 			&& { echo "error: tree is dirty" >&2; exit 1; } || : \
 	    && git submodule foreach git pull origin master \
 	    && cp -v gnulib/doc/COPYINGv3 COPYING \
-	    && cp -v gnulib/doc/fdl.texi doc/fdl.texi \
+	    && cp -v gnulib/doc/fdl-1.3.texi doc/fdl.texi \
 	    && cp -v gnulib/build-aux/bootstrap bootstrap \
 	    && cp -v gnulib/tests/init.sh tests/init.sh \
 	    && git status --short -- gnulib COPYING doc/fdl.texi bootstrap \
diff --git a/doc/fdl.texi b/doc/fdl.texi
index 542edaad..eaf3da0e 100644
--- a/doc/fdl.texi
+++ b/doc/fdl.texi
@@ -414,7 +414,7 @@ The Free Software Foundation may publish new, revised versions
 of the GNU Free Documentation License from time to time.  Such new
 versions will be similar in spirit to the present version, but may
 differ in detail to address new problems or concerns.  See
-@uref{https://www.gnu.org/copyleft/}.
+@uref{https://www.gnu.org/licenses/}.
 
 Each version of the License is given a distinguishing version number.
 If the Document specifies that a particular numbered version of this
-- 
2.28.0