#80 tree layout - left justified with many roots

[Rob Lintern]

tree layout can be weird -- mentioned this before, if it is
inverted they are fine.. but sometimes things are
squished on the left .... draw a tree with a few roots --
looks fine, then invert, the roots are left justified should
be centered.

Look at any tree layout with a few roots, and invert...
The roots are left justified rather than centered.

Peggy