Doc fixes.

internal/pkg/vsm/vsm.go

@@ -118,9 +118,9 @@ func (v *VSM) AttachTmo(tmo time.Duration) error {
 // Attach to an instance of Varnish -- varnishd with a running worker
 // process.
 //
-// If name != "", then attach to the default instance -- varnishd
-// invoked without the -n option. Otherwise, attach to the named
-// instance, as given in the -n option.
+// If name is the empty string, then attach to the default instance --
+// varnishd invoked without the -n option. Otherwise, attach to the
+// named instance, as given in the -n option.
 func (v *VSM) Attach(name string) error {
 	if err := v.checkNil(); err != nil {
 		return err

pkg/log/log.go

@@ -473,9 +473,9 @@ func (log *Log) setCursor() error {
 // Attach to an instance of Varnish -- varnishd with a running worker
 // process.
 //
-// If name != "", then attach to the default instance -- varnishd
-// invoked without the -n option. Otherwise, attach to the named
-// instance, as given in the -n option.
+// If name is the empty string, then attach to the default instance --
+// varnishd invoked without the -n option. Otherwise, attach to the
+// named instance, as given in the -n option.
 func (log *Log) Attach(name string) error {
 	if err := log.initVSM(); err != nil {
 		return err

pkg/stats/stats.go

@@ -425,9 +425,9 @@ func (stats *Stats) getD9ns() error {
 // Attach to an instance of Varnish -- varnishd with a running worker
 // process.
 //
-// If name != "", then attach to the default instance -- varnishd
-// invoked without the -n option. Otherwise, attach to the named
-// instance, as given in the -n option.
+// If name is the empty string, then attach to the default instance --
+// varnishd invoked without the -n option. Otherwise, attach to the
+// named instance, as given in the -n option.
 func (stats *Stats) Attach(name string) error {
 	if err := stats.initVSM(); err != nil {
 		return err