style changes
style changes

I capitalized the classnames and added a few spaces after commas in
paramters. It can now read non gzipped data, and will create the archive
directory before trying to open a log there. Also it opens the dedup.db
inside the archive directory rather than wherever the command is run.

edsu/twarc,DocNow/twarc,remagio/twarc,hugovk/twarc,remagio/twarc