Request: produce clean bin/php-parse output on stdout

[cyrus-and]

That is, anything that is not the actual output should go to stderr. This would allow for example to do:

$ vendor/bin/php-parse -j test.php >test.json

Now instead test.json begins with:

====> File test.php:
==> JSON dump:

This is a trivial change but I'm not sure if you're interested. Also trivial would be to write a custom script, but since there's bin/php-parse already, it would be nice to just use it.

[nikic]

Sound good to me :)