todoon commit Clarify why we can't do 'git rev-list' with a path. (1f73862)
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   2        delete tempdir
   3        --annotate-sometimes: only annotate if the patch also changes files
   4          outside the subdir?
   5        'git subtree rejoin' option to do the same as --rejoin, eg. after a
   6          rebase
   7        "-s subtree" should be given an explicit subtree option?
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