Patchutils contains a collection of tools for
manipulating patch files: interdiff, combinediff,
flipdiff, filterdiff, fixcvsdiff, rediff, lsdiff, grepdiff,
splitdiff, recountdiff, and unwrapdiff. You can
use interdiff to create an incremental patch
between two patches that are against a common
source tree, combinediff for creating a
cumulative diff from two incremental patches, and
flipdiff to transpose two incremental patches.
Filterdiff is for extracting or excluding patches
from a patch set based on modified files matching
shell wildcards. Lsdiff lists modified files in a
patch. Rediff, recountdiff, and unwrapdiff correct
hand-edited (or otherwise broken) patches.
