fix to work with pre 2.2 ruby versions

lib/sorcery/providers/github.rb

@@ -24,7 +24,7 @@ def initialize
 
       def get_user_hash(access_token)
         response = access_token.get(user_info_path)
-        
+
         auth_hash(access_token).tap do |h|
           h[:user_info] = JSON.parse(response.body).tap do |uih|
             uih['email'] = primary_email(access_token) if scope =~ /user/

spec/controllers/controller_oauth2_spec.rb

@@ -395,10 +395,10 @@ def stub_all_oauth2_requests!
             "last_name"=>"Ben Ari"
             }
         ],
-      "user": {
-          "name": "Sonny Whether",
-          "id": "123",
-          "email": "[email protected]"
+      "user"=> {
+          "name"=>"Sonny Whether",
+          "id"=>"123",
+          "email"=>"[email protected]"
       }
       }.to_json }
     allow(access_token).to receive(:get) { response }