Leading and trailing space when formatting without pipes

When formatting with the "Keep First And Last Pipes" option disabled, one space character is inserted before each line, and spaces are included at the end of each line up to the padding limit. IMO it would look better without (particularly the leading space).

Here's a copy-paste. It's much more pronounced if you see it in an editor that displays whitespace.

```markdown
Attribute | Description | Rules
------------|--------------------------------------------------|-------------------------------------------------------------------------------------------------
vehicle_id | The driver's Vehicle Identification Number (VIN) | String of length 17. Raise an `ArgumentError` if it's the wrong length.
status | Is this `Driver` available to drive? | Must be one of `:AVAILABLE` or `:UNAVAILABLE`
trips | A list of trips this driver has driven | Optional parameter. If not provided, initialize to an empty array (similar to `Passenger`).
```