I usually solve this the other way round:

type Logger interface {
  Log(args ...interface{})
}

type stdLogger struct {
  *log.Logger
}

func (s stdLogger) Log(args ...interface{}) { s.Println(args...) }

Then I log to the Logger interface, rather than to the *log.Logger directly.

@dpinela That works as long as the developer has control over the interface. If however they are using a dependency that requires a *log.Logger, then that won't work for them.

For context, see the previous (rejected) proposal at https://golang.org/issues/22513 (#22513).

Line-at-a-time logging is not the same as a Write method (Writes are not guaranteed to be aligned with any useful boundary, certainly not lines). But this is not about Write at all. It's about log.Logger, which is/was #22513. Closing as duplicate.