message: fix typo in Czech locale
diff: @@ -598,7 +598,7 @@ describe('cs locale > formatDistance', function () {
  it('returns a proper string', function () {
  TWO_FOUR_RANGE.forEach(function (number) {
  var result = formatDistance('xDays', number, FUTURE_OPTIONS)
  - assert(result === 'za ' + number + ' dni')
  + assert(result === 'za ' + number + ' dny')
  })
  })
  })
  