message: Change coupon  to one w/o date leap in UTC-x
diff: @@ -34,7 +34,7 @@ describe('insecurity', () => {
  const z85 = require('z85')
  it('returns base85-encoded month, year and discount as coupon code', () => {
  - const coupon = insecurity.generateCoupon(20, new Date('1980-01-01'))
  + const coupon = insecurity.generateCoupon(20, new Date('1980-01-02'))
  expect(coupon).to.equal('n<MiifFb4l')
  expect(z85.decode(coupon).toString()).to.equal('JAN80-20')
  })
  