Comment 2:

It's easy to create a new Logger.

Labels changed: removed priority-triage.

Status changed to WorkingAsIntended.

Comment 3:

I understand it is easy to create new Logger. However, it also easy to export 'log.std',
for example, using below piece of code
func Standard() *Logger {
  return &std
}
And my program can use it as below:
logger := log.Standard()
if some_condition {
   logger = log.New(...)
}
It won't impact any existing code. And developers can avoid create a new Logger while
there's already one.