ruby/ruby — pull request #280 by berdario (2013-04-09 20:01:42+00:00)
Title: Fix debug listing when called from the same file the debug module has been required from

with this minimal ruby code

require 'debug'
puts

when trying to list the code, it'll fail like so:

(rdb:1) l
[-3, 6] in script.rb
No sourcefile available for script.rb