Pretty print boot script

[martinklepsch]

Not sure if possible but it would be handy for debugging if the boot script generated (shown when running boot -b) would be pretty printed.

[micha]

@martinklepsch if we pretty printed it the line numbers wouldn't match up anymore, though

[martinklepsch]

So @micha said pretty printing would add some 100ms to each invocation. Probably we want to avoid that but also some improvement would be nice. Maybe we just insert linebreaks after every n characters? 😆

[micha]

@martinklepsch maybe an option to enable it?

[martinklepsch]

@micha that would be ideal but where would that happen? I thought that because it's so early in the process it might be hard to enable "on-demand".

[micha]

@martinklepsch maybe something like

$ boot --pretty-print watch cljs

[micha]

And perhaps a BOOT_PRETTY_PRINT env var as well