Our style guide recommends avoiding Latin abbreviations in technical
documentation, which includes the CLI help text. This is causing linter
issues for the docs site, because this help text is copied into the docs.
See http://go/style-guide/kb/language-and-grammar/abbreviations#latin-abbreviations
Updates #cleanup
Change-Id: I980c28d996466f0503aaaa65127685f4af608039
Signed-off-by: Alex Chan <alexc@tailscale.com>