Change the height of text based on styles that use PostScript fonts to a
desired value. Useful in AutoCAD R13 for drawings created in R12. The enclosed routine is
significantly more sophisticated than the CH_PFB.LSP enclosed in the Autodesk
documents. May not work with text based on .SHX files that were compiled from
.PFB files, and may not work with all dimensions. v1.01 fixes minor bug.