Fix sdk credentials warning (#148)

lib/googleauth/credentials_loader.rb

@@ -134,6 +134,7 @@ module Google
       def warn_if_cloud_sdk_credentials(client_id)
         warn CLOUD_SDK_CREDENTIALS_WARNING if client_id == CLOUD_SDK_CLIENT_ID
       end
+      module_function :warn_if_cloud_sdk_credentials
 
       private
 

lib/googleauth/version.rb

@@ -31,6 +31,6 @@ module Google
   # Module Auth provides classes that provide Google-specific authorization
   # used to access Google APIs.
   module Auth
-    VERSION = '0.6.1'.freeze
+    VERSION = '0.6.2'.freeze
   end
 end