Suppress Mongo log output in specs

Just to put the focus on the green dots

Author: maxjacobson

.gitignore

@@ -1,5 +1,6 @@
 *.gem
 .yardoc
+spec/mongo.log
 
 coverage.data/
 coverage/

spec/spec_helper.rb

@@ -45,6 +45,10 @@ def mongodb_version
   )
 end
 
+if defined?(Mongo)
+  Mongo::Logger.logger = Logger.new("./spec/mongo.log")
+end
+
 RSpec.configure do |config|
   config.include Mongoid::SpecHelpers
   config.raise_errors_for_deprecations!