GnuPG doesn't handle filenames?

[Sven Radde]

Hi there!

Providing filenames to GnuPG (1.4.7, gpg4win) only results in output of
a syntax help, while piping the files still works.

As an example, I will use one of the commands in GnuPG's help, but it is
the same with other commands such as encrypt, symmetric, ...:

> D:\Sven>gpg --clearsign test.txt
> usage: gpg [options] --clearsign [filename]
>
> D:\Sven>

versus

> D:\Sven>gpg --clearsign <test.txt
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: RIPEMD160
>
> testtesttest
> gpg: detected reader... and so on... everything fine.

Using GPGee's and WinPT's GUIs works as well. GnuPGs "internal"
functions such as key generation, card-status etc. are fine, too.

Am I overlooking something with filenames?

Thanks for any help,
  Sven