Updated: diffstat 1.68 - generate statistics on diff output

[Cygwin diffstat co-Maintainer]

Reads the output of diff and displays a histogram of the
insertions, deletions, and modifications per file.
It is useful for reviewing large, complex patch files.

For more information see the project home page:

	https://invisible-island.net/diffstat/diffstat.html

The following package has been upgraded in the Cygwin distribution:

- diffstat	1.68

Please see below or read /usr/share/doc/diffstat/CHANGES after
installation for details of changes since the previous release:

	https://invisible-island.net/diffstat/CHANGES


2025-04-24	1.68

- correct len parameter of mbsrtowcs
- improve configure script:
  CF_CONST_X_STRING, simplify with $ac_includes_default
  CF_GCC_WARNINGS, add gcc15 warning for zero vs NULL
  CF_PROG_LINT add options for lint program on NetBSD, and make a
  "predefined" symbol to help with cppcheck false-positives