pretty_print exception on classes inherited from WWW:Mechanize about mechanize

[emonti]

Ick... sorry. here's that example a bit more readable:

  require 'mechanize' class TestMech < WWW::Mechanize; end 
  p WWW::Mechanize.new.get('http://www.example.com') # This works just fine... 
  p TestMech.new.get('http://www.example.com') # but not this.

... and irb:

  irb(main):001:0> require 'mechanize'
  => true 
  irb(main):002:0> class TestMech < WWW::Mechanize;end
  => nil 
  irb(main):003:0> x = TestMech.new.get 'http://www.google.com'
  NoMethodError: undefined method `parse' for nil:NilClass

[bracken]

This is actually the same issue as this: http://github.com/tenderlove/mechanize/issues#issue/5

[tenderlove]

#5 is fixed, so this should be fixed.