Request: Adding -q/--quiet option to git-cat-file

The only "committag" gitweb implements now is linking the full 40-char sha of a commit to a "commit" view. This requires checking the type of object given by sha1... but git-cat-file -t writes errors to stdout if the object does not exist. I'd rather not use additional call, using git-cat-file -e, or using 'string' version of magic "-|" open to redirect stdout to /dev/null (as it is additional fork anyway).

What I need is an option -q/--quiet to git-cat-file to forbid printing error messages to stderr... but it looks like it would be easier to add it universally for all commands, or add it to git wrapper.