Fix a typo in convert_repeated_capabilities_without_prefix() docstring

[sbethur]

• This contribution adheres to CONTRIBUTING.md.

- [ ] I've updated CHANGELOG.md if applicable.

- [ ] I've added tests applicable for this pull request

What does this Pull Request accomplish?

Fix a typo in convert_repeated_capabilities_without_prefix() docstring

List issues fixed by this Pull Request below, if any.

None

What testing has been done?

CI will run the tests

[codecov]

Codecov Report

Merging #1415 into master will decrease coverage by 1.50%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1415      +/-   ##
==========================================
- Coverage   91.90%   90.39%   -1.51%     
==========================================
  Files          20       31      +11     
  Lines        3642     6993    +3351     
==========================================
+ Hits         3347     6321    +2974     
- Misses        295      672     +377     

Flag	Coverage Δ
#codegenunittests	88.24% <ø> (ø)
#nidcpowersystemtests	98.58% <ø> (?)
#nidigitalsystemtests	70.69% <ø> (?)
#nidmmsystemtests	95.48% <ø> (?)
#nifakeunittests	96.36% <ø> (ø)
#nifgensystemtests	96.91% <ø> (?)
#nimodinstsystemtests	87.23% <ø> (?)
#nimodinstunittests	95.37% <ø> (ø)
#niscopesystemtests	83.15% <ø> (?)
#nisesystemtests	100.00% <ø> (?)
#niswitchsystemtests	98.11% <ø> (?)
#nitclksystemtests	100.00% <ø> (?)
#nitclkunittests	95.45% <ø> (ø)

Impacted Files	Coverage Δ
generated/nifake/nifake/_converters.py	96.61% <ø> (ø)
generated/nitclk/nitclk/_library.py	100.00% <0.00%> (ø)
generated/nifgen/nifgen/_library.py	96.91% <0.00%> (ø)
generated/nimodinst/nimodinst/_library.py	87.23% <0.00%> (ø)
generated/niscope/niscope/waveform_info.py	57.35% <0.00%> (ø)
generated/niscope/niscope/_library.py	86.69% <0.00%> (ø)
generated/nise/nise/_library.py	100.00% <0.00%> (ø)
generated/nidigital/nidigital/_library.py	69.35% <0.00%> (ø)
generated/nidmm/nidmm/_library.py	95.48% <0.00%> (ø)
generated/nidcpower/nidcpower/_library.py	98.58% <0.00%> (ø)
... and 2 more

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