fixed core plugin artifact id

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1231251 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/webconsole-plugins/servicediagnostics/sample/pom.xml b/webconsole-plugins/servicediagnostics/sample/pom.xml
index c4b3d1b..7ca6836 100644
--- a/webconsole-plugins/servicediagnostics/sample/pom.xml
+++ b/webconsole-plugins/servicediagnostics/sample/pom.xml
@@ -19,7 +19,7 @@
   <dependencies>
     <dependency>
       <groupId>org.apache.felix</groupId>
-      <artifactId>servicediagnostics.core</artifactId>
+      <artifactId>${project.groupId}.servicediagnostics.plugin</artifactId>
       <version>0.1.0-SNAPSHOT</version>
     </dependency>
     <!-- runtime dependencies. added to populate the local repository -->