RF: Specify parameter choices uniformly

[bpoldrack]

clean was an outlier in that regard.

Closes #7026

[codecov]

Codecov Report

Base: 88.41% // Head: 90.95% // Increases project coverage by +2.54% 🎉

Coverage data is based on head (d93984b) compared to base (7bdb8a0).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##            maint    #7161      +/-   ##
==========================================
+ Coverage   88.41%   90.95%   +2.54%     
==========================================
  Files         355      355              
  Lines       46500    46700     +200     
  Branches     6328     6328              
==========================================
+ Hits        41113    42477    +1364     
+ Misses       5372     4208    -1164     
  Partials       15       15              

Impacted Files	Coverage Δ
datalad/local/clean.py	88.57% <100.00%> (ø)
datalad/distribution/create_sibling.py	69.97% <0.00%> (-0.20%)	⬇️
datalad/_version.py	45.68% <0.00%> (ø)
datalad/cli/common_args.py	100.00% <0.00%> (ø)
datalad/tests/test_dochelpers.py	100.00% <0.00%> (ø)
datalad/support/tests/test_network.py	100.00% <0.00%> (ø)
datalad/support/tests/test_locking.py	95.87% <0.00%> (+0.04%)	⬆️
datalad/customremotes/tests/test_archives.py	89.36% <0.00%> (+0.07%)	⬆️
datalad/support/gitrepo.py	92.74% <0.00%> (+0.07%)	⬆️
datalad/distributed/create_sibling_ria.py	85.71% <0.00%> (+0.08%)	⬆️
... and 49 more

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[adswa]

I guess nobody complained in a week, merging.

[yarikoptic-gitmate]

PR released in 0.17.10