[CORD-2937] Improve work partition on Multicast

Change-Id: Ia8761245e7f199721c1228bfd500e0392a20de05
(cherry picked from commit 901851ef9f2a53d6fdd08d0cc1232b125f1e35bf)
diff --git a/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 647eb49..4a3329a 100644
--- a/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -81,6 +81,12 @@
                 <entry key="-gAddr" value-ref="mcastGroupCompleter"/>
             </optional-completers>
         </command>
+        <command>
+            <action class="org.onosproject.segmentrouting.cli.McastLeaderListCommand"/>
+            <optional-completers>
+                <entry key="-gAddr" value-ref="mcastGroupCompleter"/>
+            </optional-completers>
+        </command>
     </command-bundle>
 
     <bean id="nullCompleter" class="org.apache.karaf.shell.console.completer.NullCompleter"/>