Merge remote-tracking branch 'remotes/hreitz/tags/pull-block-2021-08-09' into staging

Block patches for 6.1-rc3:
- Build fix for FUSE block exports
- iotest 233 fix

# gpg: Signature made Mon 09 Aug 2021 17:59:29 BST
# gpg:                using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg:                issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/hreitz/tags/pull-block-2021-08-09:
  tests: filter out TLS distinguished name in certificate checks
  block/export/fuse.c: fix musl build

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>