Github user dkuppitz commented on the issue:
https://github.com/apache/tinkerpop/pull/791
Hmm, although it's functional, it looks kinda weird. The common patterns
are:
* `-s` and `-s arg` for short options
* `--long`, `--long arg` and `--long="arg"` for long options
I've never seen short options allowing the equals sign.---
