Changed line 5 to assert_equal true to get 1st failing test to pass.
#48448949
Changed lines 25-27 to get the failing test to pass.
assert_equal true, nil.nil?
    assert_equal "", nil.to_s
    assert_equal "nil", nil.inspect

Used ruby irb to help with the answers. For example, typed in nil.to_s and it returned the
answer.
#google nomethod error, returns NoMethodError: undefined method

change lines 17 and 21 to get the test to pass.
Commit final changes to story   48448949
Merge pull request #2 from run4kelly/48448949_about_nil.rb

about nil.rb

[Delivers #48448949]