Add Ruby version to specs info header

and use a local variable for the line display.

[skip ci]

spec/spec_helper.rb

@@ -28,10 +28,11 @@ RSpec.configure do |config|
   config.alias_it_should_behave_like_to :it_has_behavior, 'has behavior'
 
   config.before(:suite) do
-    connection_name = ActiveRecord::Base.connection.adapter_name
-    message = "Running specs against #{connection_name}, Active Record #{
-    ActiveRecord::VERSION::STRING} and Arel #{Arel::VERSION}..."
-     puts '=' * message.length, message, '=' * message.length
+    message = "Running specs with #{ActiveRecord::Base.connection.adapter_name
+      }, Active Record #{::ActiveRecord::VERSION::STRING}, Arel #{Arel::VERSION
+      } and Ruby #{RUBY_VERSION}"
+    line = '=' * message.length
+    puts line, message, line
     Schema.create
   end