[maven-release-plugin] prepare release checkstyle-8.0
[maven-release-plugin] prepare release checkstyle-8.0

sabaka/checkstyle,sabaka/checkstyle,rnveach/checkstyle,rnveach/checkstyle,jochenvdv/checkstyle,checkstyle/checkstyle,romani/checkstyle,checkstyle/checkstyle,liscju/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,romani/checkstyle,jonmbake/checkstyle,jochenvdv/checkstyle,checkstyle/checkstyle,liscju/checkstyle,rnveach/checkstyle,romani/checkstyle,liscju/checkstyle,romani/checkstyle,jonmbake/checkstyle,romani/checkstyle,jochenvdv/checkstyle,rnveach/checkstyle,sabaka/checkstyle,rnveach/checkstyle,romani/checkstyle,jonmbake/checkstyle,checkstyle/checkstyle