Function append

packages/effect/src/internal/logger.ts:185–185

(label: string, value: string)

  const formatValue = (value: string): string => value.match(textOnly) ? value : quoteValue(value)
  const format = (label: string, value: string): string => `${logSpan_.formatLabel(label)}=${formatValue(value)}`
  const append = (label: string, value: string): string => " " + format(label, value)

  let out = format("timestamp", date.toISOString())
  out += append("level", logLevel.label)