update urfave/cli v1.22.1, go-md2man v2.0.0, blackfriday v2.0.1

This updates urfave/cli and its dependencies to v1.22.1:

- diff for urfave/cli: urfave/cli@v1.22.0...v1.22.1
- diff for go-md2man: cpuguy83/go-md2man@v1.0.10...v2.0.0
- diff for blackfriday: russross/blackfriday@v1.5.2...v2.0.1

Also adds github.com/shurcooL/sanitized_anchor_name as a new dependency, which is
used by russross/blackfriday, but will be removed again in a future update (dependency
is already removed on the v2 branch through russross/blackfriday@919b1f5

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.github/workflows/ci.yml

@@ -199,7 +199,7 @@ jobs:
           path: src/github.com/containerd/containerd
 
       - name: Install dependencies
-        run: go get -u github.com/cpuguy83/go-md2man
+        run: GO111MODULE=on go get github.com/cpuguy83/go-md2man/v2@v2.0.0
 
       - name: Make
         run: make man

script/setup/install-dev-tools

@@ -30,5 +30,5 @@ GO111MODULE=on go get github.com/stevvooe/protobuild
 GO111MODULE=off go get -d github.com/gogo/googleapis || true
 GO111MODULE=off go get -d github.com/gogo/protobuf || true
 
-go get -u github.com/cpuguy83/go-md2man
+GO111MODULE=on go get github.com/cpuguy83/go-md2man/v2@v2.0.0
 GO111MODULE=on go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.23.8

vendor.conf

@@ -10,7 +10,7 @@ github.com/containerd/go-runc                       7016d3ce2328dd2cb1192b2076eb
 github.com/containerd/ttrpc                         v1.0.1
 github.com/containerd/typeurl                       v1.0.1
 github.com/coreos/go-systemd/v22                    v22.0.0
-github.com/cpuguy83/go-md2man                       v1.0.10
+github.com/cpuguy83/go-md2man/v2                    v2.0.0
 github.com/docker/go-events                         e31b211e4f1cd09aa76fe4ac244571fab96ae47f
 github.com/docker/go-metrics                        v0.0.1
 github.com/docker/go-units                          v0.4.0
@@ -38,10 +38,11 @@ github.com/prometheus/client_golang                 v1.3.0
 github.com/prometheus/client_model                  v0.1.0
 github.com/prometheus/common                        v0.7.0
 github.com/prometheus/procfs                        v0.0.8
-github.com/russross/blackfriday                     v1.5.2
+github.com/russross/blackfriday/v2                  v2.0.1
+github.com/shurcooL/sanitized_anchor_name           v1.0.0
 github.com/sirupsen/logrus                          v1.6.0
 github.com/syndtr/gocapability                      d98352740cb2c55f81556b63d4a1ec64c5a319c2
-github.com/urfave/cli                               v1.22.0
+github.com/urfave/cli                               v1.22.1 # NOTE: urfave/cli must be <= v1.22.1 due to a regression: https://github.com/urfave/cli/issues/1092
 go.etcd.io/bbolt                                    v1.3.5
 go.opencensus.io                                    v0.22.0
 golang.org/x/net                                    f3200d17e092c607f615320ecaad13d87ad9a2b3