fix typo

Dockerfile.tomcat

@@ -30,4 +30,4 @@ ENTRYPOINT ["/entrypoint.sh"]
 CMD ["catalina.sh", "run"]
 # Openshift https://docs.openshift.com/container-platform/4.9/openshift_images/create-images.html#images-create-guide-openshift_create-images
 USER root 
-RUN chgrp -R 0 $$CATALINA_HOME &&   chmod -R g=u $CATALINA_HOME
+RUN chgrp -R 0 $CATALINA_HOME &&  chmod -R g=u $CATALINA_HOME