[Yaml-core] on the options

[TRANS <tra...@gm...>]

Tim wrote:

> Choice 2 is also non-magical, but it introducees a gratuitous inconsisten=
sy
> between block and flow syntax.

Does it have too? I mean, can't Yaml just use ':' instead of ': ', or
would that cause other problems besides having to quote times, urls,
and such?

Thanks,
T.