[MCHECKSTYLE-184] Allow src/main/resources to be searched by Checkstyle Add another properties file with a different key so that there is an actual error. Otherwise the files won't show up in the report.
maven/plugins/trunk/maven-checkstyle-plugin/src/it/multi-modules-aggregate/child-a/src/main/resources/org/apache/maven/plugins/checkstyle/its/App_sv.properties