update github.com/coredns/corefile-migration v1.0.20

- Minor change: Don't return Unsupported/Deprecated plugins for non-migration cases, i.e. when the start version is the same as the end version.

vendor/github.com/coredns/corefile-migration/migration/migrate.go

@@ -20,12 +20,18 @@ import (
 // any deprecated, removed, or ignored plugins/directives present in the Corefile.  Notifications are also returned for
 // any new default plugins that would be added in a migration.
 func Deprecated(fromCoreDNSVersion, toCoreDNSVersion, corefileStr string) ([]Notice, error) {
+	if fromCoreDNSVersion == toCoreDNSVersion {
+		return nil, nil
+	}
 	return getStatus(fromCoreDNSVersion, toCoreDNSVersion, corefileStr, SevAll)
 }
 
 // Unsupported returns a list notifications of plugins/options that are not handled supported by this migration tool,
 // but may still be valid in CoreDNS.
 func Unsupported(fromCoreDNSVersion, toCoreDNSVersion, corefileStr string) ([]Notice, error) {
+	if fromCoreDNSVersion == toCoreDNSVersion {
+		return nil, nil
+	}
 	return getStatus(fromCoreDNSVersion, toCoreDNSVersion, corefileStr, SevUnsupported)
 }
 

vendor/github.com/coredns/corefile-migration/migration/versions.go

@@ -30,7 +30,13 @@ type release struct {
 
 // Versions holds a map of plugin/option migrations per CoreDNS release (since 1.1.4)
 var Versions = map[string]release{
+	"1.10.1": {
+		priorVersion:   "1.10.0",
+		dockerImageSHA: "a0ead06651cf580044aeb0a0feba63591858fb2e43ade8c9dea45a6a89ae7e5e",
+		plugins:        plugins_1_9_3,
+	},
 	"1.10.0": {
+		nextVersion:    "1.10.1",
 		priorVersion:   "1.9.4",
 		dockerImageSHA: "017727efcfeb7d053af68e51436ce8e65edbc6ca573720afb4f79c8594036955",
 		plugins:        plugins_1_9_3,