fixed the DMCommand which must implement the Felix Command interface

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@899469 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/dependencymanager/shell/src/main/java/org/apache/felix/dm/shell/DMCommand.java b/dependencymanager/shell/src/main/java/org/apache/felix/dm/shell/DMCommand.java
index 2455f42..9923ce7 100644
--- a/dependencymanager/shell/src/main/java/org/apache/felix/dm/shell/DMCommand.java
+++ b/dependencymanager/shell/src/main/java/org/apache/felix/dm/shell/DMCommand.java
@@ -26,6 +26,7 @@
 
 import org.apache.felix.dm.management.ServiceComponent;
 import org.apache.felix.dm.management.ServiceComponentDependency;
+import org.apache.felix.shell.Command;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.InvalidSyntaxException;
@@ -37,7 +38,7 @@
  * 
  * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
  */
-public class DMCommand {
+public class DMCommand implements Command {
     private static final BundleIdSorter SORTER = new BundleIdSorter();
     private final BundleContext m_context;