MFV d60fa10fd872db7e3d8cb1e161cfdae026c43b14:

Update unbound 1.13.0 --> 1.13.1.

Includes numerous bugfixes documented at:
https://www.nlnetlabs.nl/projects/unbound/download/#unbound-1-13-1

(cherry picked from commit f44e67d120ad78ef7894241b519ee79fd190a16e)

Git Hash: c1f4b179fee705bc884d5bda381efcabfef106da
Git Author: cy@FreeBSD.org

MFC r364721-r364722

r364721:
MFV 364468:

Update unbound 1.10.1 --> 1.11.0.

r364722:
Update unbound version number.

MFC r333552,333558-333568,333573,338568-338569,339275,339278,339294,340037,
r349720,356228:

r333552 (des):

Upgrade Unbound to 1.6.0. More to follow.

r333558 (des):

Upgrade Unbound to 1.6.1. More to follow.

r333559 (des):

Upgrade Unbound to 1.6.2. More to follow.

r333560 (des):

Upgrade Unbound to 1.6.3. More to follow.

r333561 (des):

Upgrade Unbound to 1.6.4. More to follow.

r333562 (des):

Upgrade Unbound to 1.6.5. More to follow.

r333563 (des):

Upgrade Unbound to 1.6.6. More to follow.

r333564 (des):

Upgrade Unbound to 1.6.7. More to follow.

r333565 (des):

No reason to keep this around.

r333566 (des):

Upgrade Unbound to 1.6.8. More to follow.

r333567 (des):

Upgrade Unbound to 1.7.0. More to follow.

r333568 (des):

Upgrade Unbound to 1.7.1.

r333573 (des):

Rename all Unbound binaries and man pages from unbound* to local-unbound*.

PR: 222902

r338568 (des):

Upgrade Unbound to 1.7.2. More to follow.

r338569 (des):

Upgrade Unbound to 1.7.3. More to follow.

r339275 (des):

Upgrade Unbound to 1.8.0. More to follow.

r339278 (des):

Upgrade to 1.8.1.

r339294 (des):

Try harder to sanitize the environment before running configure.
Remove a workaround for older Unbound versions that used sbrk.

r340037 (des):

Merge upstream r4932: turn so-reuseport option off by default.

r349720 (des):

Upgrade Unbound to 1.9.2.

MFC r356228 (cy):
MFV r356143:

Update unbound 1.9.2 --> 1.9.6.

Security: CVE-2017-15105 (fixed by 1.6.7)
CVE-2019-18934 (fixed by 1.9.5)

MFH (r305381, r306457): upgrade to unbound 1.5.10 via 1.5.9

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Upgrade to Unbound 1.5.7.

Upgrade to Unbound 1.5.4.

Upgrade to Unbound 1.5.1. Almost all our local changes to date have been
adopted upstream, greatly reducing the diff.

import unbound 1.5.0