[BZ#769810] Visually show when there are changes in a line that require horizontal scrolling to be seen
Submitted by Balint Reczey
I recently had to review some code written for large terminals and formatted in a way that makes heavy use of vertical alignment.
Looking at differences with meld, I was never sure whether I could see all the differences, or whether I was missing something at the right side of the screen, so I spent some effort in scrolling right and left.
This made me wish for meld to somehow visually distinguish whether the rest of the line that would require right-scrolling to be seen is unchanged, or whether it does have changes.
I'm attaching two example files that can be compared side by side, and unless meld is run on a very wide window, example1.c would have a rather significant change that could currently be easy to miss.
Originally reported to Debian's BTS at: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=834141