code: function createImportError(rule) {
  	var url = rule.import ? rule.import.replace(/\r?\n/g, '\\n') : '<no url>';
  	var err = ['Bad import url: @import ' + url];
  
  	if (rule.position) {
  		err.push('  starting at line ' + rule.position.start.line + ' column ' + rule.position.start.column);
  		err.push('    ending at line ' + rule.position.end.line + ' column ' + rule.position.end.column);
  
  		if (rule.position.source) {
  			err.push('  in ' + rule.position.source);
  		}
  	}
  
  	return err.join('\n');
   }
docs: Create bad import rule error
  
  @param {String} rule
  @api private