bug#77560: The guix style command deletes #; comments.

[Ricardo Wurmus]

I think this is because READ-WITH-COMMENTS in (guix read-print) 
does not have a clause for reading expressions that start with #;. 
It explicitly handles single line comments, and it knows about 
G-expressions (starting with #), but it does not handle #;, so it 
cannot preserve them.

--
Ricardo