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`-U<n>`::
`--unified=<n>`::
- Generate diffs with _<n>_ lines of context. Defaults to `diff.context`
- or 3 if the config option is unset.
+ Generate diffs with _<n>_ lines of context. The number of context
+ lines defaults to `diff.context` or 3 if the configuration variable
+ is unset. (`-U` without `<n>` is silently accepted as a synonym for
+ `-p` due to a historical accident).
`--inter-hunk-context=<n>`::
Show the context between diff hunks, up to the specified _<number>_