Gemfile in newrelic_rpm-3.7.1.188

- old
+ new

@@ -20,10 +20,10 @@
   gem "sqlite3"
 end
 
 platforms :rbx do
   gem "rubysl"
-  gem "rubysl-json"
+  gem "json"
   # If we don't skip the require here, test-unit tries to install its at_exit
   # hook and run when we run our rake task to create the test DB.
   gem "rubysl-test-unit", :require => false
   gem "racc"  # https://github.com/rubinius/rubinius/issues/2632
 end