DIP 1027---String Interpolation---Community Review Round 1

[Walter Bright]

On 12/11/2019 7:37 AM, Patrick Schluter wrote:
> The transformation is WRONG!

You're quite right. I missed that. With some noodling about with this problem, 
I've decided to replace the % with $. Then, % just becomes an ordinary character.

Using $ also has the advantage of visually distinguishing a % format string from 
an interpolated format string.