@RaymondLim I always indent 1 space if I carrying over a sentence from the previous line so that the reader realizes that they aren't 2 independent thoughts.  

consider the following:

// normalize output so that it looks better for print
// optimized for East Asian languages

This could mean 2 different things depending on how you read it.  It could mean that the algorithm is optimized for east asian languages or that the output looks better for print that has been optimized for east asian languages.  If the second comment has a space then maybe the reader sees that it's a continuation of thought from the previous line.

// normalize output so that it looks better for print
//  optimized for East Asian languages

I do this because I don't like seeing comments that stretch off the edge of the screen but that means there are fewer columns to work with and it's hard to get a concise sentence that doesn't span more than 1 line.   

Either way, I removed it but you may run in to it in other parts of the code base.