Println variants have inconsistent spacing about logrus

[sirupsen]

Good catch @aarondl. This is definitely a bug, I'll look into it.

[sirupsen]

This can be changed for sure. I originally did this instead of just calling fmt.Sprintln because I didn't want a newline at the end, and I thought that's all it did. Newlines don't make sense when you're treating the message as a value.

What do you think about having the same concatenation rules, but still leaving out the newline?

[aarondl]

Of course, the newlines are not what we want in a logging package. You'll notice Go's log package already has this behavior: http://golang.org/src/pkg/log/log.go#L124

So what you've mentioned is perfect :D

[sirupsen]

Alright, fixed in #26. Let me know if everything looks good to you :)