* master:
fix running_stats thing
Update CdxServerDedup unit test
Chec writer._fname in unit test
Configurable CdxServerDedup urllib3 connection pool size
Yet another unit test fix
Change the writer unit test
fix github problem with unit test
Another fix for the unit test
Fix writer unit test
Add WarcWriter warc_filename unit test
Fix warc_filename default value
Configurable WARC filenames
For some reason this test previously failed in github. Maybe it has to
do with the temporary files I need to create there... in any case, I
changed what we check and evaluate the ``write._fname`` for the correct
filename format.
Check also that locking succeeds after the writer closes the WARC file.
Remove parametrize from ``test_warc_writer_locking``, test only for the
``no_warc_open_suffix=True`` option.
Change `1` to `OBTAINED LOCK` and `0` to `FAILED TO OBTAIN LOCK` in
``lock_file`` method.
On Linux, `fcntl.flock` is implemented with `flock(2)`, and
`fcntl.lockf` is implemented with `fcntl(2)` — they are not compatible.
Java `lock()` appears to be `fcntl(2)`. So, other Java programs working
with these files work correctly only with `fcntl.lockf`.
`warcprox` MUST use `fcntl.lockf`
