Fixed single process pretty printer bug.

This PR fixes a bug where the single process deployer was using a
separate pretty printer for every component. This leads to bad
highlighting and tabularization. Now, every component shares a pretty
printer.

singleprocess.go

@@ -57,6 +57,7 @@ type singleprocessEnv struct {
  submissionTime time.Time
  statsProcessor *imetrics.StatsProcessor // tracks and computes stats to be rendered on the /statusz page.
  traceSaver func(spans *protos.TraceSpans) error
+ pp *logging.PrettyPrinter
 
  mu sync.Mutex
  listeners map[string][]string // listener addresses, keyed by name
@@ -131,6 +132,7 @@ func newSingleprocessEnv(bootstrap runtime.Bootstrap) (*singleprocessEnv, error)
  listeners: map[string][]string{},
  statsProcessor: imetrics.NewStatsProcessor(),
  traceSaver: traceSaver,
+ pp: logging.NewPrettyPrinter(colors.Enabled()),
  }
  go func() {
  err := env.statsProcessor.CollectMetrics(ctx, metrics.Snapshot)
@@ -320,9 +322,8 @@ func (e *singleprocessEnv) Profile(_ context.Context, req *protos.GetProfileRequ
 }
 
 func (e *singleprocessEnv) CreateLogSaver() func(entry *protos.LogEntry) {
- pp := logging.NewPrettyPrinter(colors.Enabled())
  return func(entry *protos.LogEntry) {
- msg := pp.Format(entry)
+ msg := e.pp.Format(entry)
  if e.bootstrap.Quiet {
  // Note that we format the log entry regardless of whether we print
  // it so that benchmark results are not skewed significantly by the