CParser.y: change the formatting style for easier navigation
CParser.y: change the formatting style for easier navigation

Change this:

rule
  : a b
  : c d
  ;

into this:

rule:
    a n
  | c d
  ;

While the first is arguably more readable, the second form allows us
to search for rule names much easier.

tmikov/c99,tmikov/c99,tmikov/c99