[ruby/irb] Re-implement prev_spaces feature for pasted code (https://github.com/ruby/irb/pull/607)
https://github.com/ruby/irb/commit/9d97a192a5
[ruby/irb] Re-implement prev_spaces feature for pasted code
(https://github.com/ruby/irb/pull/607)
https://github.com/ruby/irb/commit/9d97a192a5