view log diffs using the patch hash

Dependencies

• [2] PQKTNYVZ header + reindentation
• [3] MAGPFPZB init

Change contents

• replacement in vc-darcs.el at line 442
  [2.3419]→[2.3419:3445](∅→∅)
  − "^ \\* \\(.+\\)")
  [2.3419]

  [2.3445]
  + "^patch \\([0-9a-f]\\{40\\}\\)")