add docker.patch

docker.patch

@@ -0,0 +1,25 @@
+diff --git a/src/Lfg_Solo.cpp b/src/Lfg_Solo.cpp
+index ee5f70e..ea035bf 100644
+--- a/src/Lfg_Solo.cpp
++++ b/src/Lfg_Solo.cpp
+@@ -20,7 +20,7 @@ public:
+ 
+     lfg_solo_announce() : PlayerScript("lfg_solo_announce") {}
+ 
+-    void OnLogin(Player* player)
++    void OnLogin(Player* __attribute__ ((unused))player)
+     {
+         // Announce Module
+         if (sConfigMgr->GetBoolDefault("SoloLFG.Announce", true))
+@@ -37,7 +37,7 @@ public:
+     
+    // Docker Installation prevents warnings. In order to avoid the issue, we need to add __attribute__ ((unused)) 
+    // to the player variable to tell the compiler it is fine not to use it.
+-   void OnLogin(Player* player)
++   void OnLogin(Player* __attribute__ ((unused))player)
+    {
+ 	   if (sConfigMgr->GetIntDefault("SoloLFG.Enable", true))
+         {
+-- 
+1.8.3.1
+