> csslint *.css
csslint *.css

csslint: There are 1 problems in /home/joshua/workspace/github.com/phacility/arcanist/fail.css.

fail.css
1: error at line 1, col 1
Unexpected token '~' at line 1, col 1.
~

csslint: No errors in /home/joshua/workspace/github.com/phacility/arcanist/pass.css.

> csslint --quiet *.css
csslint --quiet *.css

csslint: There are 1 problems in /home/joshua/workspace/github.com/phacility/arcanist/fail.css.

fail.css
1: error at line 1, col 1
Unexpected token '~' at line 1, col 1.
~

> csslint --format=lint-xml *.css
<?xml version="1.0" encoding="utf-8"?><lint>
<file name="/home/joshua/workspace/github.com/phacility/arcanist/fail.css"><issue line="1" char="1" severity="error" reason="Unexpected token '~' at line 1, col 1." evidence="~"/></file>
</lint>

> csslint --format=lint-xml --quiet *.css
<?xml version="1.0" encoding="utf-8"?><lint>
<file name="/home/joshua/workspace/github.com/phacility/arcanist/fail.css"><issue line="1" char="1" severity="error" reason="Unexpected token '~' at line 1, col 1." evidence="~"/></file>
</lint>