Some flags ended with a colon, some didn't. For man pages, the prevailing normal practice is not to end the flags lines with colons. Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon) Upstream-commit: 7908725e3f8b3c8a69fc6533f28c6789e4669eb0 Component: engine