netinfo: return local services in the default report

Credit to l0rinc for refactoring ServicesList().

Co-authored-by: l0rinc <pap.lorinc@gmail.com>
Co-authored-by: Daniela Brozzoni <danielabrozzoni@protonmail.com>

src/bitcoin-cli.cpp

@@ -463,6 +463,17 @@ private:
         }
         return str;
     }
+    static std::string ServicesList(const UniValue& services)
+    {
+        std::string str{services.size() ? services[0].get_str() : ""};
+        for (size_t i{1}; i < services.size(); ++i) {
+            str += ", " + services[i].get_str();
+        }
+        for (auto& c: str) {
+            c = (c == '_' ? ' ' : ToLower(c));
+        }
+        return str;
+    }
 
 public:
     static constexpr int ID_PEERINFO = 0;
@@ -636,7 +647,8 @@ public:
             }
         }
 
-        // Report local addresses, ports, and scores.
+        // Report local services, addresses, ports, and scores.
+        result += strprintf("\n\nLocal services: %s", ServicesList(networkinfo["localservicesnames"]));
         result += "\n\nLocal addresses";
         const std::vector<UniValue>& local_addrs{networkinfo["localaddresses"].getValues()};
         if (local_addrs.empty()) {