Re-indenting of block comments doesn't handle blank lines.

[thomasvl]

#791 doesn't seem to handle a blank line in the block comments, i.e. -

        /* Comment

           Comment after blank */

        /*
           Comment

           Comment after blank
         */

It looks like this is inserting the leading whitespace on the blank lines rather than leaving the blank lines completely blank. And that whitespace then gets flagged as something that should get fixed.

[ahoppen]

Synced to Apple’s issue tracker as rdar://136589486