[BZ#589366] Show whitespace differences in inline highlighting
Submitted by Oliver Gerlich
It would be nice if the file diff view could (optionally) highlight trailing whitespace, so that users notice if they made a change that would introduce this. Some kind of "squiggly underline" or bold red text could be used for highlighting.
Personally, I use Meld for reviewing changes before committing, so it is the last stage where such mistakes could be caught. Some editors already show trailing whitespaces, but some don't; so I always check for trailing whitespace "manually" in the diff view, and it would be neat if Meld would help there.