fix some lint errors

Author: briansorahan

osc.go

@@ -108,8 +108,6 @@ type netWriter interface {
 	WriteTo([]byte, net.Addr) (int, error)
 }
 
-var errClosed = errors.New("conn is closed")
-
 func checkDispatcher(dispatcher Dispatcher) error {
 	if dispatcher == nil {
 		return ErrNilDispatcher

unix.go

@@ -114,6 +114,7 @@ func (conn *UnixConn) Serve(numWorkers int, dispatcher Dispatcher) error {
 	return serve(conn, numWorkers, dispatcher)
 }
 
+// TempSocket creates an absolute path to a temporary socket file.
 func TempSocket() string {
 	return filepath.Join(os.TempDir(), ulid.New().String()) + ".sock"
 }

worker.go

@@ -4,13 +4,15 @@ import (
 	"github.com/pkg/errors"
 )
 
+// Worker is a worker who can process OSC messages.
 type Worker struct {
 	DataChan   chan Incoming
 	Dispatcher Dispatcher
 	ErrChan    chan error
 	Ready      chan<- Worker
 }
 
+// Run runs the worker.
 func (w Worker) Run() {
 	w.Ready <- w