t / t4013 / diff.diff-tree_--cc_--summary_REVERSEon commit gc docs: clarify that "gc" doesn't throw away referenced objects (daecbf2)
   1$ git diff-tree --cc --summary REVERSE
   22562325a7ee916efb2481da93073b82cec801cbc
   3 create mode 100644 file1
   4 delete mode 100644 file2
   5 delete mode 100644 file3
   6$