[bug-diffutils] show context lines with --side-by-side --suppress-common-lines?

[Ryan Barrett]

hi all! i love diff --side-by-side --suppress-common-lines for diffing
big files. i do wish i could get context or unified style output,
though, ie a few common lines before and after each diff chunk. it'd
make a huge difference with getting your bearings for where each chunk
is and what it's doing.

have you all ever thought about supporting --context (or --unified)
with --side-by-side, and having it print out before and after common
lines and maybe the --- [page numbers ---- separators?

thanks in advance!

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