Fix: wrong doc comment * insert behaviour

[mkslanc]

Issue #, if available: #5555 #5320

Description of changes:
This change should fix most of wrong newline adding asterisk insert behaviours

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Pull Request Checklist:

• No backwards incompatible changes were made to Ace's public interface which is defined through the main typings file (ace.d.ts) and its references:
  • https://github.com/ajaxorg/ace/blob/master/ace.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-modes.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-extensions.d.ts

[codecov]

Codecov Report

Attention: Patch coverage is 95.45455% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 86.78%. Comparing base (a3277ea) to head (bf855cb).

Files	Patch %	Lines
src/mode/behaviour/cstyle.js	91.66%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5571   +/-   ##
=======================================
  Coverage   86.78%   86.78%           
=======================================
  Files         594      594           
  Lines       43017    43050   +33     
  Branches     7129     7137    +8     
=======================================
+ Hits        37331    37362   +31     
- Misses       5686     5688    +2     

Flag	Coverage Δ
unittests	86.78% <95.45%> (+<0.01%)	⬆️

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[kungfooman]

If anyone else wants to test:

git clone https://github.com/ajaxorg/ace/
cd ace
gh pr checkout 5571
node ./Makefile.dryice.js

Go to http://127.0.0.1/ace

I tested and works perfectly, thank you! Anyone has time for merge and release? This bug is too annoying, I want to get rid of it in my project.