Usage: InFile [[OutFile] [FontFile]]
TXT2PCX creates a monochrome PCX file named OutFile
by rastorizing the text contained in InFile.
If OutFile is not given, InFile name is used with PCX extension.
If FontFile is not given, TXT2PCX.FNT in the same directory
as the program is used.
Maximum line length is 106
Maximum file lines is 70