Add @Deprecated annotations to things documented as @deprecated.

core/src/main/java/hudson/Proc.java

@@ -431,6 +431,7 @@ public abstract class Proc {
      *
      * @deprecated as of 1.399. Replaced by {@link Launcher.RemoteLauncher.ProcImpl}
      */
+    @Deprecated
     public static final class RemoteProc extends Proc {
         private final Future<Integer> process;