Filter sensitive parameters in request's query string

Hi Guys,

I've made a patch a while ago to filter out sensitive parameters in the query string, such as those api_key or secret_token which the user of your API might pass along as a query string. Would you mind give me some feedback and apply it if you think it's worth?

The ticket is here: #6244 Filter sensitive `QUERY_STRING` parameters in the log - Ruby on Rails - rails

Thank you,

Prem S.