Close #18

dm-cli/.vscode/launch.json

@@ -22,7 +22,7 @@
             "https://testnet-dm2.bitdeals.org",
             "--debug",
             "deal", 
-            "negative",
+            "cancel",
             "-m",
             "message_text",
             "-s",

dm-cli/Deals.cpp

@@ -532,7 +532,7 @@ int Deals::Cancel()
 	string result = ExecCommand(data.c_str());
 	if (result.length() == 0)
 	{
-		return NoResponse("");
+		return NoResponse(data);
 	}
 
 	nlohmann::json jsonData = nlohmann::json::parse(result);