Update module xanzy/go-gitlab to v0.22.1

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/mattn/go-shellwords v1.0.6
 	github.com/rakyll/statik v0.1.6
 	github.com/reviewdog/errorformat v0.0.0-20191201164258-85eb1c3cc6e3
-	github.com/xanzy/go-gitlab v0.20.1
+	github.com/xanzy/go-gitlab v0.22.1
 	golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab
 	golang.org/x/oauth2 v0.0.0-20191122200657-5d9234df094c
 	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e

go.sum

@@ -85,8 +85,11 @@ github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFR
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/xanzy/go-gitlab v0.20.1 h1:+1BWDry84G5PzsnzG9DI4YjPbHeWKyouM0q0gfDPKgY=
 github.com/xanzy/go-gitlab v0.20.1/go.mod h1:LSfUQ9OPDnwRqulJk2HcWaAiFfCzaknyeGvjQI67MbE=
+github.com/xanzy/go-gitlab v0.22.1 h1:TVxgHmoa35jQL+9FCkG0nwPDxU9dQZXknBTDtGaSFno=
+github.com/xanzy/go-gitlab v0.22.1/go.mod h1:t4Bmvnxj7k37S4Y17lfLx+nLqkf/oQwT2HagfWKv5Og=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=