Remove the ansi-1251 encoding, it's called microsoft-cp1251.
Simplify some encodings to avoid stating the obvious.
Limit UNDEFINE line to en encoding's declared SIZE (bug 1248).
This is not needed with libfontenc (used by the X server and mkfontscale),
which will ignore out-of-range entries, but apparently caused ttmkfdir to
crash. Thanks to Donnie Berkholtz.
The package provides the X.org font encoding files, such as
adobe-dingbats.enc.gz, ibm-cp866.enc, jisx0212.1990-0.enc.gz,
and others. This is from the modular X.org project.
