feat: include modifier in warning message

[midgleyc]

Apparently this message displays in TCRS, so add enough information to start to debug it.

[codecov]

Codecov Report

Merging #1603 (e772cd4) into main (9ce85b3) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1603   +/-   ##
=========================================
  Coverage     35.21%   35.21%           
  Complexity    17752    17752           
=========================================
  Files          1068     1068           
  Lines        163958   163958           
  Branches      35033    35033           
=========================================
+ Hits          57736    57741    +5     
+ Misses        96659    96655    -4     
+ Partials       9563     9562    -1     

Impacted Files	Coverage Δ
...ceforge/kolmafia/persistence/ModifierDatabase.java	55.94% <100.00%> (ø)
src/net/sourceforge/kolmafia/RequestThread.java	38.18% <0.00%> (+1.21%)	⬆️
...sourceforge/kolmafia/textui/langserver/Script.java	85.10% <0.00%> (+3.19%)	⬆️

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