Fix IllegalArgumentException in FpmSetAcceptRoutesCommand

Change-Id: I7b85f3e49a6f864b37586c0e8f4945f6a17f44f0
(cherry picked from commit 45d557eb9ef1cde02099782c3e49a852932feacf)
diff --git a/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/cli/FpmSetAcceptRoutesCommand.java b/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/cli/FpmSetAcceptRoutesCommand.java
index 2ec0713..44cd120 100644
--- a/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/cli/FpmSetAcceptRoutesCommand.java
+++ b/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/cli/FpmSetAcceptRoutesCommand.java
@@ -40,7 +40,7 @@
             required = true)
     String peerPort = null;
 
-    @Argument(index = 1, name = "acceptRoutes", description = "Flag to accept or discard routes",
+    @Argument(index = 2, name = "acceptRoutes", description = "Flag to accept or discard routes",
             required = true)
     String acceptRoutesString = null;