warning: multi-line comment (why?)

[Jamie Lokier]

The motivation is for when you do "comment-region" in Emacs to comment
out code that includes macros.

Neil Booth wrote:
> > Regardless, just glancing at it, you've broken silently ignoring nulls
> > in comments.  You've also broken backslash and trigraph-escaped
> > newlines, I think.  I want those fixed, cleanly, and testcases at
> > least.
> 
> Sorry, ignore that about newlines, I meant slashes and I don't think
> I'm right.

Hmm.  The nulls which warn are part of the multi-line comment.  Fair
enough, I'll fix that and get the correct column numbers too.

Trigraph-escaped slashes aren't checked for, so you still get the
warning in that case.  Do you care?

-- Jamie