Topaz passes RubySpec's core/array/plus_spec.rb
Exception when the limit arg of each_line is 0
Merge pull request #331 from jstepien/core-array-plus_spec

Topaz passes RubySpec's core/array/plus_spec.rb
Merge pull request #332 from pelletier/IO.each_line_limit_0_fix

Exception when the limit arg of each_line is 0