number_to_percentage method error

Imported from Lighthouse. Original ticket at: http://rails.lighthouseapp.com/projects/8994/tickets/6592 Created by raven - 2011-03-18 06:52:21 UTC

When i invoke

number_to_percentage(100)

it got a error.

this method in api is

number_to_percentage(number, options = {}) 

Point is if add :precision parameter to it, like

number_to_percentage(100, :precision => 2) 

it works.

here is the trace information

activesupport (3.0.0) lib/active_support/whiny_nil.rb:48:in `method_missing'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rational.rb:526:in `**'
actionpack (3.0.0) lib/action_view/helpers/number_helper.rb:269:in `number_with_precision'
actionpack (3.0.0) lib/action_view/helpers/number_helper.rb:163:in `number_to_percentage'