I feel like this change would only help modestly with the string concatenation issue.  I just want it because... well, I've frequently wished it were there in working code that has nothing to do with string concatenation... and usually wound up using superfluous and less clear extra parentheses where continuation lines would be nicer.

On Thu, May 16, 2013 at 1:58 PM, Andrew Barnert <abarnert@yahoo.com> wrote:
From: Bruce Leban <bruce@leapyear.org>
Sent: Thursday, May 16, 2013 11:41 AM

>The \ continuation character may be followed by white space and a comment.

This seems clean and obvious once you learn it, and it will be easy for novices to learn, and it won't affect any existing (working) code.

So, if this is enough to solve the string concatenation problem to everyone's satisfaction without any other changes, I'm definitely +1 on it. 

Otherwise, I guess +0.
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