flake8 C901 missing human-readable name

[dlukeomalley]

Overview

Flake8 C901 is missing a rename and may be a best practice / stylistic.

flake8 C901
     > migrations/201802021027_af3f5579c84d_add_cascades.py:24
     ╷
   24│   def upgrade():
     ╵
     = 'upgrade' is too complex (30)

Steps to Reproduce

1. git clone [email protected]:flaskbb/flaskbb.git
2. bento init && bento check --all

Additional Context

Bento version (run bento --version): 0.8.0