suggestion lies about existing argument

[securesvet]

Version: Deno 2.1.3

Going back to #27321 PR and #27318 Issue as I see the problem, styled suggestions lie about existing combinations of subcommand-argument

"'{}{subcommand} {arg}{}' exists",

Let's take deno lint as an instance

deno -A lint
error: unexpected argument '--allow-all' found

  tip: 'lint --allow-all' exists

Usage: deno lint [OPTIONS] [files]...

and as suggested:

$ deno lint -A
error: unexpected argument '-A' found

  tip: to pass '-A' as a value, use '-- -A'

Usage: deno lint [OPTIONS] [files]...

As I see the problem, fn flags_from_vec(args: Vec<OsString>) in cli/args/flags.rs lacks checking subcommand has such argument while error handling