modern conventions for all commands/ #596

Job	Run time
homebrew-macos-test	9m 22s
distro-test (ubuntu:latest)	5m 12s
fresh-macos-test	9m 24s
distro-test (fedora:latest)	5m 32s
login-shells-and-linting	5m 37s
distro-test (debian:latest)	5m 2s
distro-test (alpine:latest)	4m 54s
distro-test (manjarolinux/base)	5m 16s
distro-test (opensuse/leap)	3m 4s
distro-test (opensuse/tumbleweed)	5m 4s
distro-test (kalilinux/kali-rolling)	5m 16s
	1h 3m 43s

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