Update copyright to 2015
diff --git a/src/ruby/spec/server_spec.rb b/src/ruby/spec/server_spec.rb
index 1550ba6..123e645 100644
--- a/src/ruby/spec/server_spec.rb
+++ b/src/ruby/spec/server_spec.rb
@@ -1,4 +1,4 @@
-# Copyright 2014, Google Inc.
+# Copyright 2015, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -209,4 +209,4 @@
     s.start
     s
   end
-end
+end
\ No newline at end of file