tests/test-1102

check-code: Add a ``maxerr`` argument to the ``checkfile`` function

check-code.py used to halt after 15 errors. This changeset adds a new
argument to the checkfile function to control this limit.

#!/bin/sh

rm -rf a
hg init a
cd a
echo a > a
hg ci -Am0
hg tag t1 # 1
hg tag --remove t1 # 2

hg co 1
hg tag -r0 t1
hg tags