Core/Logging: Fix PlayerDump logging

src/server/shared/Logging/Log.cpp

@@ -435,10 +435,10 @@ void Log::outCharDump(char const* str, uint32 accountId, uint32 guid, char const
        << ")\n" << str << "\n== END DUMP ==\n";
 
     LogMessage* msg = new LogMessage(LOG_LEVEL_INFO, LOG_FILTER_PLAYER_DUMP, ss.str());
-    ss.clear();
-    ss << guid << '_' << name;
+    std::ostringstream param;
+    param << guid << '_' << name;
 
-    msg->param1 = ss.str();
+    msg->param1 = param.str();
 
     write(msg);
 }