Merge pull request #412 from dseevr/goreportcardlol

volmigrate: fix golint and misspell errors flagged by Go Report Card

volmigrate/backend/backend.go

@@ -1,11 +1,12 @@
 package backend
 
+// SchemaVersionKey is the path to the key which holds the current schema version of our namespace.
 const SchemaVersionKey = "schema-version"
 
 // Backend defines the interface for a type which implements the functionality to talk
 // to a given datastore (etcd2, etcd3, consul, etc.)
 type Backend interface {
-	// CurrentSchemaVersion returns the version of the last migration which was successfuly run.
+	// CurrentSchemaVersion returns the version of the last migration which was successfully run.
 	// This is used to ensure that the migration we're about to run hasn't been run already.
 	// If the version key does not exist, it will return 0.
 	CurrentSchemaVersion() int64

volmigrate/backend/etcd2/etcd2.go

@@ -13,6 +13,7 @@ import (
 	"golang.org/x/net/context"
 )
 
+// New creates a new etcd2 migration engine.
 func New(prefix string, etcdHosts []string) *Engine {
 	etcdCfg := client.Config{
 		Endpoints: etcdHosts,
@@ -35,7 +36,7 @@ type Engine struct {
 	prefix     string
 }
 
-// CurrentSchemaVersion returns the version of the last migration which was successfuly run.
+// CurrentSchemaVersion returns the version of the last migration which was successfully run.
 // If no previous migrations have been run, the schema version is 0.
 // If there's any error besides "key doesn't exist", execution is aborted.
 func (e *Engine) CurrentSchemaVersion() int64 {