[PATCH 0/3] diff: add --relative-names

For more explanation head straight to 3/3. The first two patches are preparation.

Nguyễn Thái Ngọc Duy (3):
  diff.c: refactor strip_prefix()
  diff.c: separate "prefix" from RELATIVE_NAME (aka --relative)
  diff.c: add --relative-names to be used with --name-only

 Documentation/diff-options.txt |  4 ++++
 diff.c                         | 54 +++++++++++++++++++++++++++++-------------
 diff.h                         |  1 +
 3 files changed, 42 insertions(+), 17 deletions(-)