git config --git-all can return non-zero error code

According to the man page for git-config, the --git-all option is not supposed to return an error code:

--get-all
	Like get, but does not fail if the number of values for the key is
	not exactly one.

IMHO, zero is also "not exactly one", but I still get a 1 exit code if the key does not exist.

My .git/config says this:

[user "cq.branch"]
	mastr = upstream/master

git-config --get-all does this:

$ git config --get-all user.cq.branch.master $ echo $? 1 $ git config --get-all user.cq.branch.mastr upstream/master $ echo $? 0

I just want git to return nothing if the key doesn't exist. I don't want it to return an exit code. Is there a way to do this? I think either the code is broken or the documentation needs to be changed.

I'm running git version 1.7.3.4