I'm running into issues with redirection in tcsh.

Consider the following commands: `vi --version` and `vi --xxx`. And let's assume this is on a machine where `vi` supports the `--version` option. The option `--xxx` is invalid, and therefore `vim` should display something via `stderr`.

By that reasoning, using `2> /dev/null` with both of these commands should give output for the valid case and no output for the invalid case.

And that *is* what I see in bash, zsh, ksh, and dash.

```
$ vi --xxx 2> /dev/null
$ vi --version 2> /dev/null
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Oct 20 2014 16:09:17)
...

```

However, when I try this in tcsh, it gives me *no output* in *both* cases.

```
$ vi --xxx 2> /dev/null
$ vi --version 2> /dev/null
(there is no output here)

```

What is going on here? Am I redirecting `stderr` incorrectly?

Here is the output of `tcsh --version`:

```
tcsh 6.18.01 (Astron) 2012-02-14 (i686-intel-linux) options wide,nls,dl,al,kan,rh,nd,color,filec

```