Facebook style formatting confused by Python typings

The following function definition doesn't seem to be formatted correctly by the facebook style. Shortening or lengthening the line (e.g. changing `item_one_oh_one_two` to either `item_one` or `item_two_oh_one_three`) seems to fix the issue.

This is only using the `BASED_ON_STYLE = facebook` flag.

```
from typing import List

# Input:
def log_name_padding_out(item_one_oh_one_two: List[str], *, item_two: int = 15) -> None:
pass

# Expected:
def log_name_padding_out(
item_one_oh_one_two: List[str], *, item_two: int = 15
) -> None:
pass

# Actual:
def log_name_padding_out(item_one_oh_one_two: List[str], *,
item_two: int = 15) -> None:
pass
```