spec/minimization_unidimensional_spec.rb | 12 6 + 6 - 0 !
spec/spec_helper.rb | 6 0 + 6 - 0 !
2 files changed, 6 insertions(+), 12 deletions(-)

 adapt specs to rspec2
 Do require 'spec', the deprecated version of RSpec.
 Change be_close to be_within to avoid warnings