feature request from manual: typography of \arpeggioBracket

[Graham Percival]

There's a few feature requests in comments in the manual; I will be
removing them and sending them here.

Here's the first I found.  I personally think the \arpeggioBracket looks
fine so we might as well ignore this, but I don't want to delete other
people's comments without giving them a chance to save the info
if they wish.


%  todo: ugh, lousy typography.  Look for real example. --hwn
{
\arpeggioBracket
<c' e g c>\arpeggio
}