[maven-release-plugin] copy for tag checkstyle-7.8.1

[maven-release-plugin] copy for tag checkstyle-7.8

[maven-release-plugin] copy for tag checkstyle-7.7

[maven-release-plugin] copy for tag checkstyle-7.6.1

[maven-release-plugin] copy for tag checkstyle-7.6

[maven-release-plugin] copy for tag checkstyle-7.5.1

[maven-release-plugin] copy for tag checkstyle-7.5

[maven-release-plugin] copy for tag checkstyle-7.4

[maven-release-plugin] copy for tag checkstyle-7.3

[maven-release-plugin] copy for tag checkstyle-7.2