rpc: Improve addnode remove command error message

This also adds test coverage for the remove command which was uncovered before.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
index 9981ea35df..7e9c78d2f2 100644
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -276,7 +276,7 @@ static UniValue addnode(const JSONRPCRequest& request)
     else if(strCommand == "remove")
     {
         if(!node.connman->RemoveAddedNode(strNode))
-            throw JSONRPCError(RPC_CLIENT_NODE_NOT_ADDED, "Error: Node has not been added.");
+            throw JSONRPCError(RPC_CLIENT_NODE_NOT_ADDED, "Error: Node could not be removed. It has not been added previously.");
     }
 
     return NullUniValue;