intridea/multi_json — pull request #145 by oriolgual (2014-04-03 14:03:53+00:00)
Title: [Fix] Oj expects indent as a Fixnum

When using multi_json with Oj, and also the json lib happens to be laoded, there's a case the json lib sets indent as a String (see https://github.com/ruby/ruby/blob/v2_1_0/ext/json/lib/json/common.rb), making Oj crash with ArgumentError: :indent must be a Fixnum.