FUNCTION
When given a impossible css filename ROBODoc should at least report the filename.
SOURCE
{
add_source( "test.c", $source );
my ($out, $err) = runrobo( qw(--src Src --doc Docs --multidoc --html --css Foo/Bar/cascade.css) );
like($err, qr/cascade/, 'should give an error message about css file' );
}