Fix golint

recent additions to golint mean that a number of files cause the
build to start failing if they are edited (we only run against changed
files)

This fixes all the errors in the repo so things don't unexpectedly start
failing for people making PRs

acme/acme.go

@@ -119,11 +119,12 @@ func (a *ACME) CreateClusterConfig(leadership *cluster.Leadership, tlsConfig *tl
 	}
 
 	datastore, err := cluster.NewDataStore(
+		leadership.Pool.Ctx(),
 		staert.KvSource{
 			Store:  leadership.Store,
 			Prefix: a.Storage,
 		},
-		leadership.Pool.Ctx(), &Account{},
+		&Account{},
 		listener)
 	if err != nil {
 		return err

acme/localStore.go

@@ -68,7 +68,7 @@ func (t *localTransaction) Commit(object cluster.Object) error {
 	t.LocalStore.account = object.(*Account)
 	defer t.storageLock.Unlock()
 	if t.dirty {
-		return fmt.Errorf("Transaction already used. Please begin a new one.")
+		return fmt.Errorf("transaction already used, please begin a new one")
 	}
 
 	// write account to file