The `--glob` flag is parsed from the command line, but in the
`CmdDataPull` class in the invocation the parameter (`self.args.glob`)
is not passed to the `pull` method implementation. Hence, always the
default value (False) is used. This commit fixes this issue and sets the
`glob` parameter properly.
* pull/fetch/push: add stats
* fix typo: s/logging/logger
* pull: make stats detailed, with summary at the bottom
* tests: mock properly, set return_value
* add a line space