Small formatting fixes

[ejm714]

Noticed some unnecessary noqas from a previous PR so removed those. Also added a black formatting check to make lint and updated files accordingly.

[codecov]

Codecov Report

Merging #120 (01e39a4) into master (5ee9912) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #120   +/-   ##
=======================================
  Coverage   96.80%   96.80%           
=======================================
  Files           6        6           
  Lines         188      188           
=======================================
  Hits          182      182           
  Misses          6        6           

Impacted Files	Coverage Δ
deon/formats.py	98.95% <ø> (ø)
deon/parser.py	100.00% <ø> (ø)
deon/__main__.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5ee9912...01e39a4. Read the comment docs.