release tools

This synchronizes the build rules with other repos and (as part of
that) bumps the Go version to 1.11.1. The recommended formatting
changed slightly in that Go version.

pkg/controller/util.go

@@ -68,7 +68,7 @@ const (
 )
 
 var snapshotterSecretParams = deprecatedSecretParamsMap{
-	name: "Snapshotter",
+	name:                         "Snapshotter",
 	deprecatedSecretNameKey:      snapshotterSecretNameKey,
 	deprecatedSecretNamespaceKey: snapshotterSecretNamespaceKey,
 	secretNameKey:                prefixedSnapshotterSecretNameKey,