## Steps to reproduce

List what commands you ran, any errors you see. If you run commands over some input, attaching the input to the issue will help us track down the bug.

## Expected Behavior

Fill in with what you expected to see.

## Actual Behavior

Show any unexpected output

## OS Version

Windows/macOS/Linux/BSD? What version?

## Graphviz Version

run $ dot -V

## Additional info

Fill in with anything else that might be important.
