[27.x backport] rpm, deb: fix Dockerfile linting issues#1065

vvoland merged 2 commits intodocker:27.xdocker/docker-ce-packaging:27.xfrom

thaJeztah:27.x_backport_fix_dockerfile_lintingthaJeztah/docker-ce-packaging:27.x_backport_fix_dockerfile_lintingCopy head branch name to clipboard