Passing multiple parameters to logging functions doesn't behave as expected

Please tell us about your environment:

• winston version?
  • winston@2
  • winston@3
• node -v outputs: v8.11.3
• Operating System? macOS
• Language? Flow ES6/7

What is the problem?

With 3.x.x:

const winston = require('winston')

const logger = winston.createLogger({
	transports: [new winston.transports.Console()]
})

logger.info('test log', 'with a second parameter')

Outputs:

{"level":"info","message":"test log"}

With 2.x.x:

const winston = require('winston')

const logger = new winston.Logger({
	transports: [new winston.transports.Console()]
})

logger.info('test log', 'with a second parameter')

Outputs:

info: test log with a second parameter

What do you expect to happen instead?

It should output:

{"level":"info","message":"test log with a second parameter"}

[rjmunro]

This is a HUGE breaking change for us. If it is intentional, it should be detailed in https://github.com/winstonjs/winston/blob/master/UPGRADE-3.0.md

[neillindberg]

I understand major versions introduce breaking changes, but my goodness…