Bug #20696
Updated by nobu (Nobuyoshi Nakada) 3 months ago
I expected the following code captures the error message, but `err:` option is ignored.
```shell-session
$ ruby -e 'p IO.read("|ruby -e raise", err: %i[child out])'
-e:1:in '<main>': unhandled exception
""
```
https://github.com/ruby/ruby/pull/11446