Log Message:
tex-modes{,-doc}: update to 4.3

This update to modes.mf adds a mode for potrace usage at 7200 dpi,
requested by Hans Hagen and Mikael Sundqvist.

The modes.mf file collects all known Metafont modes for printing or
display devices, of whatever printing technology. Special provision is
made for write-white printers, and `landscape' support is available, for
making suitable fonts for printers with pixels whose aspect is
non-square.

The file also provides definitions that make \specials identifying the
mode in Metafont's GF output, and put coding information and other
Xerox-world information in the TFM file.