Remove quotes around single output strings; remove trailing newline character

[mdm-code]

• Trimmed the intermediate output trailing newline
• Replaced non-idiomatic code in the interpreter
• Rendered single output strings without quotes
• Aligned documentation with changes done to quoting

[codecov]

Codecov Report

Attention: Patch coverage is 68.75000% with 5 lines in your changes missing coverage. Please review.

Project coverage is 87.56%. Comparing base (6d3e0c9) to head (21f7822).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
tq.go	54.54%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #41      +/-   ##
==========================================
+ Coverage   87.53%   87.56%   +0.03%     
==========================================
  Files          12       12              
  Lines         826      828       +2     
==========================================
+ Hits          723      725       +2     
- Misses         79       81       +2     
+ Partials       24       22       -2     

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