add simple args parser, fix some bugs

Error: communicate() takes at least 2 arguments (1 given)

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
trivial: add newline after building pkgs msg

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
optimize bugzilla req, fix vars style for BZ msg

Now we will login at initialize Bugzilla class and logout when we need.
Drop '"' from all vars which we will post to BZ msg.

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>