jpetazzo/pipework — pull request #42 by ruphin (2014-03-11 19:28:51+00:00)
Title: Update deprecated docker flags to new format

Docker 0.9 introduced a new format for flags, deprecating long flags with single dash prefix.

This commit gets rid of the following warning from Docker:
```
Warning: '-format' is deprecated, it will be removed soon. See usage.
```