-U<n>--unified=<n>-
Generate diffs with <n> lines of context. The number of context lines defaults to
diff.contextor 3 if the configuration variable is unset. (-Uwithout<n>is silently accepted as a synonym for-pdue to a historical accident). --inter-hunk-context=<n>-
Show the context between diff hunks, up to the specified <number> of lines, thereby fusing hunks that are close to each other. Defaults to
diff.interHunkContextor 0 if the config option is unset.