module Diff::LCS

def unpatch!(patchset)

Does no patch direction autodiscovery.
based on +self+ and the +patchset+ will be created. See Diff::LCS#unpatch.
Attempts to unpatch +self+ with the provided +patchset+. A new sequence 
def unpatch!(patchset)
  Diff::LCS.unpatch!(self, patchset)
end