Made cookie.SM an interface as long as it has no methods. It looked ugly on test coverage reports with its 0% of coverage.

git-svn-id: https://svn.apache.org/repos/asf/jakarta/httpcomponents/httpclient/trunk@550078 13f79535-47bb-0310-9956-ffa450edef68

module-client/src/main/java/org/apache/http/cookie/SM.java

@@ -38,13 +38,10 @@ package org.apache.http.cookie;
  *
  * @since 4.0
  */
-public final class SM {
+public interface SM {
 
     public static final String COOKIE= "Cookie";
 
     public static final String SET_COOKIE = "Set-Cookie";
-    
-    private SM() {
-    }
        
 }