2007/02/02 RD VMMXX
    Assets:Investments:Vanguard:VMMXX  0.350 VMMXX @ $1.00
    Income:Dividends:Vanguard:VMMXX        $-0.35

test reg --register-format='%(amount)\n'
0.350 VMMXX {$1.00} [2007/02/02]
$-0.35
end test
