[c++] Fix some misbroken lines [trivial]

[johnkerl]

Issue and/or context: Found on drive-by

Changes:

Notes for Reviewer:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.35%. Comparing base (cc33291) to head (a43b839).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3697      +/-   ##
==========================================
+ Coverage   86.31%   86.35%   +0.04%     
==========================================
  Files          55       55              
  Lines        6494     6494              
==========================================
+ Hits         5605     5608       +3     
+ Misses        889      886       -3     

Flag	Coverage Δ
python	86.35% <ø> (+0.04%)	⬆️

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Components	Coverage Δ
python_api	86.35% <ø> (+0.04%)	⬆️
libtiledbsoma	∅ <ø> (∅)