fixed handling of errors from lex methods

codec/h265/lex_test.go

@@ -28,7 +28,6 @@ LICENSE
 package h265
 
 import (
-	"errors"
 	"io"
 	"testing"
 )
@@ -248,8 +247,8 @@ func TestLex(t *testing.T) {
 		r := &rtpReader{packets: test.packets}
 		d := &destination{}
 		err := NewLexer(test.donl).Lex(d, r, 0)
-		switch {
-		case err == nil || errors.Is(err, io.EOF): // Do nothing
+		switch err {
+		case nil, io.EOF: // Do nothing
 		default:
 			t.Fatalf("error lexing: %v\n", err)
 		}

revid/revid.go

@@ -849,9 +849,9 @@ func (r *Revid) Update(vars map[string]string) error {
 func (r *Revid) processFrom(read io.Reader, delay time.Duration) {
 	err := r.lexTo(r.filters[0], read, delay)
 	r.cfg.Logger.Log(logger.Debug, pkg+"finished lexing")
-	switch {
-	case err == nil: // Do nothing.
-	case errors.Is(err, io.EOF): // TODO: handle this depending on loop mode.
+	switch err {
+	case nil: // Do nothing.
+	case io.EOF: // TODO: handle this depending on loop mode.
 	default:
 		r.err <- err
 	}