fix[ux]: don't warn for logs with 0 positional args

[charles-cooper]

this is especially annoying when -Werror is turned on!

What I did

How I did it

How to verify it

Commit message

per title. the existing logic would incorrectly warn for logs with 0
arguments (see the test in this commit). this commit fixes the logic.

Description for the changelog

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.04%. Comparing base (d395dd0) to head (06e4a78).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4501   +/-   ##
=======================================
  Coverage   92.04%   92.04%           
=======================================
  Files         120      120           
  Lines       17361    17362    +1     
  Branches     2940     2941    +1     
=======================================
+ Hits        15980    15981    +1     
  Misses        964      964           
  Partials      417      417           

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[cyberthirst]

add a test case for == 0 args please