I'd like my function to display help information if there are no arguments, or if the first argument is either -h or --help.

function foo
    if test -z "$argv"  -o "$argv[ 1 ]" = "-h"  -o  "$argv[ 1 ]" = "--help"
        echo "help"
    # Else if there are other arguments, do something else...
    end
end

This seems to work correctly when there are no arguments, or if the first argument is --help, but sending -h returns an error:

test: Expected a combining operator like '-a' at index 5

I'm running fish on Fedora 22 x64. I've tried this on both the version available in the Fedora repos (2.1.1) and from compiling the latest release (2.2.0).