module Diff::LCS

def unpatch_me(patchset)

be replaced. See Diff::LCS#unpatch. Does no patch direction autodiscovery.
If the sequence this is used on supports #replace, the value of +self+ will
Attempts to unpatch +self+ with the provided +patchset+, using #unpatch!. 
def unpatch_me(patchset)
  if respond_to? :replace
    replace(unpatch!(patchset))
  else
    unpatch!(patchset)
  end
end