test-lx.xml

<project name="lightning linter" default="lxlint" basedir=".">
    <description>Lightning Linter for Salesforce</description>
    <property file="lxlint.properties"/>
    <target name="lxlint">
     <exec executable="heroku"> 
        <arg value="lightning:lint"/>
        <arg value="${src.folder.lx}"/>
     </exec>
    </target>
</project>