Address minor typos

[ischoegl]

Changes proposed in this pull request

Edits were prompted by UG question.

Checklist

• The pull request includes a clear description of this code change
• Commit messages have short titles and reference relevant issues
• Build passes (scons build & scons test) and unit tests address code coverage
• Style & formatting of contributed code follows contributing guidelines
• The pull request is ready for review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.24%. Comparing base (b785e49) to head (2171cdf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1826      +/-   ##
==========================================
- Coverage   73.24%   73.24%   -0.01%     
==========================================
  Files         383      383              
  Lines       54652    54650       -2     
  Branches     9109     9109              
==========================================
- Hits        40028    40026       -2     
  Misses      11611    11611              
  Partials     3013     3013              

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