match: name "Added --complement to pull"
>   Added the ability to specify the --complement argument on the pull
>   command as an alternative to --intersect and --union.  When
>   --complement is specified, candidate patches for a pull are all of
>   the pullable patches that exist in the first repository specified
>   but which don't exist in any of the remaining repositories (the
>   set-theory complement of the first repository to the union of the
>   remaining repositories). (Kevin Quick)

match: exact "Add pull_compl test; note interesting duplicate repo elimination in docs."
>   Added regression testing for the "pull --complement" operation.
>   Updated documentation to explain why "darcs pull --complement R1
>   R1" is the same as "darcs pull R1" instead of the empty
>   set. (Kevin Quick)
