This is with ruby built from source on linux (ubuntu 5.10):
$ ruby -v
ruby 1.8.4 (2005-12-24) [i686-linux]
$ ri Set
/usr/local/lib/ruby/1.8/rdoc/ri/ri_formatter.rb:80:in conv_html': private method
gsub’ called for [“Example”]:Array (NoMethodError)
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_formatter.rb:167:in
display_flow_item' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_formatter.rb:212:in
display_flow’
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_formatter.rb:211:in
display_flow' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_display.rb:268:in
display_flow’
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_display.rb:89:in
display_class_info' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_display.rb:199:in
page’
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_display.rb:77:in
display_class_info' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:71:in
report_class_stuff’
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:106:in
get_info_for' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:135:in
process_args’
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:134:in
`process_args’
from /usr/local/bin/ri:48