fix nitpicks from coderabbit

Author: Liliputech

usermods/udp_name_sync/udp_name_sync.cpp

@@ -5,8 +5,6 @@ class UdpNameSync : public Usermod {
   private:
 
     bool enabled = false;
-    bool initDone = false;
-    unsigned long lastTime = 0;
     char segmentName[WLED_MAX_SEGNAME_LEN] = {0};
     static const char _name[];
     static const char _enabled[];
@@ -15,15 +13,14 @@ class UdpNameSync : public Usermod {
     /**
      * Enable/Disable the usermod
      */
-    inline void enable(bool enable) { enabled = enable; }
+    inline void enable(bool value) { enabled = value; }
 
     /**
      * Get usermod enabled/disabled state
      */
-    inline bool isEnabled() { return enabled; }
+    inline bool isEnabled() const { return enabled; }
 
     void setup() override {
-      initDone = true;
     }
 
     void loop() override {
@@ -32,10 +29,9 @@ class UdpNameSync : public Usermod {
       Segment& mainseg = strip.getMainSegment();
       if (!strlen(segmentName) && !mainseg.name) return; //name was never set, do nothing
 
-      IPAddress broadcastIp = ~uint32_t(Network.subnetMask()) | uint32_t(Network.gatewayIP());
+      IPAddress broadcastIp = uint32_t(Network.localIP()) | ~uint32_t(Network.subnetMask());
       byte udpOut[WLED_MAX_SEGNAME_LEN + 2];
-      udpOut[0] = 200; // 0: wled notifier protocol, 1: warls protocol, 2 is free
-      
+      udpOut[0] = 200; // custom usermod packet type (avoid 0..5 used by core protocols)  
       if (strlen(segmentName) && !mainseg.name) { // name cleared
         notifierUdp.beginPacket(broadcastIp, udpPort);
         segmentName[0] = '\0';
@@ -52,7 +48,6 @@ class UdpNameSync : public Usermod {
       notifierUdp.beginPacket(broadcastIp, udpPort);
       DEBUG_PRINT(F("UdpNameSync: saving segment name "));
       DEBUG_PRINTLN(mainseg.name);
-      size_t length = strlen(mainseg.name);
       strlcpy(segmentName, mainseg.name, sizeof(segmentName));
       strlcpy((char *)&udpOut[1], segmentName, sizeof(udpOut) - 1); // leave room for header byte
       notifierUdp.write(udpOut, 2 + strnlen((char *)&udpOut[1], sizeof(udpOut) - 1));