[maven-release-plugin] prepare release checkstyle-6.4.1
[maven-release-plugin] prepare release checkstyle-6.4.1

universsky/checkstyle,WonderCsabo/checkstyle,HubSpot/checkstyle,romani/checkstyle,FeodorFitsner/checkstyle,mkordas/checkstyle,WilliamRen/checkstyle,pietern/checkstyle,ilanKeshet/checkstyle,romani/checkstyle,liscju/checkstyle,sharang108/checkstyle,philwebb/checkstyle,izishared/checkstyle,liscju/checkstyle,ivanov-alex/checkstyle,jochenvdv/checkstyle,jonmbake/checkstyle,Bhavik3/checkstyle,MEZk/checkstyle,sirdis/checkstyle,FeodorFitsner/checkstyle,WilliamRen/checkstyle,AkshitaKukreja30/checkstyle,checkstyle/checkstyle,Godin/checkstyle,llocc/checkstyle,StetsiukRoman/checkstyle,sharang108/checkstyle,rnveach/checkstyle,philwebb/checkstyle,another-dave/checkstyle,sharang108/checkstyle,ilanKeshet/checkstyle,gallandarakhneorg/checkstyle,vboerchers/checkstyle,sabaka/checkstyle,beckerhd/checkstyle,baratali/checkstyle,beckerhd/checkstyle,cs1331/checkstyle,ilanKeshet/checkstyle,checkstyle/checkstyle,zofuthan/checkstyle-1,mkordas/checkstyle,rmswimkktt/checkstyle,universsky/checkstyle,jonmbake/checkstyle,checkstyle/checkstyle,baratali/checkstyle,ivanov-alex/checkstyle,StetsiukRoman/checkstyle,naver/checkstyle,Bhavik3/checkstyle,sirdis/checkstyle,mkordas/checkstyle,universsky/checkstyle,MEZk/checkstyle,bansalayush/checkstyle,HubSpot/checkstyle,rnveach/checkstyle,pietern/checkstyle,naver/checkstyle,gallandarakhneorg/checkstyle,WilliamRen/checkstyle,jasonchaffee/checkstyle,pietern/checkstyle,zofuthan/checkstyle-1,autermann/checkstyle,attatrol/checkstyle,sabaka/checkstyle,llocc/checkstyle,autermann/checkstyle,Godin/checkstyle,zofuthan/checkstyle-1,vboerchers/checkstyle,designreuse/checkstyle,FeodorFitsner/checkstyle,attatrol/checkstyle,autermann/checkstyle,nikhilgupta23/checkstyle,HubSpot/checkstyle,liscju/checkstyle,cs1331/checkstyle,sabaka/checkstyle,another-dave/checkstyle,WonderCsabo/checkstyle,AkshitaKukreja30/checkstyle,rmswimkktt/checkstyle,StetsiukRoman/checkstyle,designreuse/checkstyle,romani/checkstyle,sirdis/checkstyle,romani/checkstyle,MEZk/checkstyle,ivanov-alex/checkstyle,romani/checkstyle,izishared/checkstyle,cs1331/checkstyle,jochenvdv/checkstyle,philwebb/checkstyle,rnveach/checkstyle,another-dave/checkstyle,designreuse/checkstyle,WonderCsabo/checkstyle,llocc/checkstyle,romani/checkstyle,rmswimkktt/checkstyle,rnveach/checkstyle,jasonchaffee/checkstyle,izishared/checkstyle,beckerhd/checkstyle,nikhilgupta23/checkstyle,nikhilgupta23/checkstyle,rnveach/checkstyle,jonmbake/checkstyle,baratali/checkstyle,rnveach/checkstyle,Bhavik3/checkstyle,naver/checkstyle,AkshitaKukreja30/checkstyle,bansalayush/checkstyle,checkstyle/checkstyle,gallandarakhneorg/checkstyle,jasonchaffee/checkstyle,Godin/checkstyle,jochenvdv/checkstyle,bansalayush/checkstyle,vboerchers/checkstyle,attatrol/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle