Better Zinc Log Format

[borkaehw]

The Zinc output log is getting harder to read whenever we get a lot of messages, especially with long file path and long messages.

It would be good if we can come out with an idea of improving the readability. Adding distinction to the file path would be one option, it becomes more clear where the actually message starts.

How about making it bold?

How about putting new lines?

Or we could have both?

Any suggestion will be appreciated. Thanks.

[borkaehw]

@SrodriguezO @sriraamas @jjudd @andyscott What do you think?

[SrodriguezO]

I like the idea of adding newlines between errors. I'm also open to making the file path bold, but the biggest gains in readability seem to be the newlines.

[sriraamas]

a colon(:) after the line number can also make things a little better. Am not sure about underline, but I think the newline, does run the risk of not-so-compact output, while improving readability.

[sriraamas]

May be it will make sense to also have `[Error] on the blank newline, so that it doesn't seem too chopped up.

[SrodriguezO]

I thought underline would be a good idea too, but it makes the output look like a bunch of links

[pauldraper]

Paths would be shorter without src/main/scala pasted everywhere :/