FIX : enable the function “to_cfradial2” to choose a default storage engine

[chfer]

This PR aims to correct two small typo bugs in the function “to_cfradial2” located in the module “xradar/io/export/cfradial2.py” at lines 61 and 63.

• In the first commit of this PR branch (fix/cfradial2-default-engine-test - 8b7efd9) a pytest , “tests/io/test_cfradial2.py::test_to_cfradial2_selects_default_engine”,is added which demonstrates that the typos prevent the “to_cfradial2” function from choosing a default storage engine to write the DataTree through “xarray.DataTree.to_netcdf”. The value of the engine there remains “None”, so the test fails.
• In the second commit (830f81d) the two typos are corrected and the test succeeds.

[kmuehlbauer]

Thanks @chfer for catching this!

[kmuehlbauer]

@chfer Please add an entry to history.md. This is good to go.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.18%. Comparing base (279d33b) to head (ed20719).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #378      +/-   ##
==========================================
+ Coverage   94.15%   94.18%   +0.03%     
==========================================
  Files          29       29              
  Lines        6416     6416              
==========================================
+ Hits         6041     6043       +2     
+ Misses        375      373       -2     

Flag	Coverage Δ
notebooktests	0.00% <0.00%> (ø)
unittests	94.18% <100.00%> (+0.03%)	⬆️

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[syedhamidali]

@chfer Thanks for fixing it, I might have missed it, my bad!

[kmuehlbauer]

I thought it was my fault, right there from the beginning. But good it is fixed now.

[syedhamidali]

@kmuehlbauer It was me, Sorry! 😃

[chfer]

@chfer Please add an entry to history.md. This is good to go.

Thank you. This should be done by now :-)

[kmuehlbauer]

Thanks @chfer, and welcome to xradar!