Invalid Error: indent/outdent mismatch for 'block condition'

[reversi-fun]

I encountered invalid results.

>rbeautify ident2.rb

..............ruby/lib/ruby/gems/2.2.0/gems/rbeautify-0.0.7/lib/rbeautify.rb:115: warning: character class has duplicated range: /.*=\s*<<-?\s*([_|\w]+).*/

Error: indent/outdent mismatch: -1.

--ident2.rb

if !('one two tree'.match(/(\w+)/) { |matched_word|
  p [matched_word,matched_word.offset(0)]
 }).nil? # end of block condition
 p 'sucess'
else
 p 'failed'
end # endif

best reguards.