Hi,

Joel VanderWerf wrote:
> In ruby 1.9.0 (2004-11-18) [i686-linux], something changed in readline, 
> which broke irb -r irb/completion.
> 
> $ irb -r irb/completion
> /usr/local/lib/ruby/1.9/irb/completion.rb:187:in 
> `completion_append_character=':TypeError: cannot convert nil into String

I added a test method to test/readline/test_readline.rb and fixed it:)

Thanks,
Shugo