tests/filtercr.py

diffhelpers: use Py_ssize_t in testhunk()

Eliminates

  mercurial/diffhelpers.c(143) : warning C4244: '=' : conversion from
  'Py_ssize_t' to 'int', possible loss of data
  mercurial/diffhelpers.c(144) : warning C4244: '=' : conversion from
  'Py_ssize_t' to 'int', possible loss of data

when compiling for Windows x64 target using the Microsoft compiler.

#!/usr/bin/env python

# Filter output by the progress extension to make it readable in tests

import sys, re

for line in sys.stdin:
    line = re.sub(r'\r+[^\n]', lambda m: '\n' + m.group()[-1:], line)
    sys.stdout.write(line)
print