toString refactor in druntime

[Benjamin Thaut via Digitalmars-d]

I'm planning on doing a pull request for druntime which rewrites every 
toString function within druntime to use the new sink signature. That 
way druntime would cause a lot less allocations which end up beeing 
garbage right away. Are there any objections against doing so? Any 
reasons why such a pull request would not get accepted?

Kind Regards
Benjamin Thaut