whitespace around = in kwargs

[ranocha]

For consistency with Trixi.jl

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0e8161a) 93.65% compared to head (22e568e) 93.65%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #7   +/-   ##
=======================================
  Coverage   93.65%   93.65%           
=======================================
  Files           4        4           
  Lines          63       63           
=======================================
  Hits           59       59           
  Misses          4        4           

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[sloede]

Given the majority of the code in the Trixi Framework is currently formatted this way, I think this is the right move.

[github-actions]

Pull Request Test Coverage Report for Build 7698756899

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.651%

---

Totals
Change from base Build 7698753991:	0.0%
Covered Lines:	59
Relevant Lines:	63

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💛 - Coveralls

[sloede]

@ranocha sorry, I might have re-re-re-formatted during merge conflict resolution... can you please format once more?

[ranocha]

Thanks