Changes

Fix ToSI issue

When called with -1 for "maxprecision" the ToSI API would call
something like Clamp(whatever, min: 0, max: -24) which was
nonsensical.

Remove the use of Clamp so that the lower min bounds is applied
last and always wins because negative values into the format
string are just illegal.
 (commit: 6dc55c3)