run black formatter on config_parser_util.py and valve_lldp.py

[anarkiwi]

No description provided.

[codecov]

Codecov Report

Patch coverage: 94.29% and no project coverage change.

Comparison is base (7906bae) 92.26% compared to head (a9ed00f) 92.26%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4267   +/-   ##
=======================================
  Coverage   92.26%   92.26%           
=======================================
  Files          47       47           
  Lines        8909     8909           
=======================================
  Hits         8219     8219           
  Misses        690      690           

Impacted Files	Coverage Δ
faucet/config_parser_util.py	91.82% <89.47%> (ø)
faucet/valve_lldp.py	96.34% <100.00%> (ø)

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[gizmoguy]

I do enjoy all the white space formatting changes, I think it makes parts of the code easier to read.

The one thing I'm wondering about is all the quotation mark changes. Here is the black documentation on why they picked double quotes for everything:

https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#strings

They mention the --skip-string-normalization option, if people aren't too fussed on single / double quotes, I wonder if we set this option to skip changing them all? Thoughts?