`pmbootstrap config <name> False` does not work

• You can pmbootstrap config ssh_keys True but you can't pmbootstrap config ssh_keys False.
• Likewise, you can pmbootstrap config sudo_timer True but you can't pmbootstrap config sudo_timer False.
• In fact, you can't False any True using pmbootstrap config. But you can True any False.
• You can pmbootstrap config -r ssh_keys to False it. But only because its default value is False.
• But you are never able to False build_pkgs_on_install using pmbootstrap config because its default value is True.

Don't let it deceive you, though. It will dutifully report:

$ pmbootstrap config ssh_keys False
[21:06:55] Config changed: ssh_keys='False'

But a pmbootstrap config will reveal its lie.