It's not obvious what to do about `(1 warning not shown)` - expand error message?

[MarcoGorelli]

Describe the Bug

def foo() -> str:
    return 'aaaaa'

def bar(a: str) -> None:
    return None

bar(str(foo()))

 INFO 0 errors (1 warning not shown)

Running -v doesn't show the warning, and it's not immediately obvious how to see it

How about

INFO 0 errors (1 warning not shown, use `--min-severity=warn` to see it)

Sandbox Link

No response

(Only applicable for extension issues) IDE Information

No response