Round method not consistent with jruby 1.7.5 compared to 1.7.3 #1135
Description
In 1.7.3
jruby-1.7.3 :001 > 0.0.round
=> 0
jruby-1.7.3 :002 > 0.0.round(1)
=> 0.0
jruby-1.7.3 :003 > 0.round(1)
=> 0.0
In 1.7.5
jruby-1.7.5 :018 > 0.0.round
=> 0
jruby-1.7.5 :019 > 0.0.round(1)
=> 0
jruby-1.7.5 :020 > 0.round(1)
=> 0.0