internal/logfmt/logfmt.go
func WriteKeyValue(buf Writer, key, value interface{}) {
	writeKey(buf, key)
	buf.WriteRune('=')
	WriteValue(buf, value)
}
func WriteKeyValue(buf Writer, key, value interface{}) {
	writeKey(buf, key)
	buf.WriteRune('=')
	WriteValue(buf, value)
}
func WriteKeyValue ( buf Writer , key , value interface { } ) { writeKey ( buf , key ) buf . WriteRune ( '=' ) WriteValue ( buf , value ) }
// WriteKeyValue writes a key/value pair to the writer.
WriteKeyValue writes a key / value pair to the writer .