The programs now support behavior conformant to
POSIX 1003.1-2001. Options to diff that accepted
regular expressions now conform to the grep syntax
rather than the GNU Emacs syntax for regexps. An
option to diff3 and sdiff allows you to use other
diff utilities than the one that comes with
diffutils. cmp supports BSD-style options to
specify the bytes to skip at the start of the
files. Support was improved for locales other than
the `C' (POSIX) locale and for MS-DOS. Support for
large files (>2 GB) was added. Man pages are now
provided. Some of the diagnostics were reworded so
that they are more consistent.
