Update dustforce-hib makedepends()

Without change:

    ==> Starting setup...
    ./dustforce-linux-1347954459.sh: line 405: exec: -t: invalid option
    exec: usage: exec [-cl] [-a name] [command [arguments ...]] [redirection ...]
    ==> ERROR: A failure occurred in package().

Relevant lines from script:

    GUESS_XTERMS="xterm rxvt dtterm eterm Eterm kvt konsole aterm"
    for a in $GUESS_XTERMS; do
        if type $a >/dev/null 2>&1; then
            XTERM=$a
            break
        fi
    done
    chmod a+x $0 || echo Please add execution rights on $0
    if test `echo "$0" | cut -c1` = "/"; then # Spawn a terminal!
        exec $XTERM -title "$label" -e "$0" --xwin "$initargs"
    else
        exec $XTERM -title "$label" -e "./$0" --xwin "$initargs"
    fi