Don't spam logging about missing rewinder

src/network/rewind_info.cpp

@@ -92,9 +92,13 @@ void RewindInfoState::restore()
             r = ProjectileManager::get()->addRewinderFromNetworkState(name);
         }
         if (!r)
+        {
+            if (!RewindManager::get()->hasMissingRewinder(name))
             {
                 Log::error("RewindInfoState", "Missing rewinder %s",
                     name.c_str());
+                RewindManager::get()->addMissingRewinder(name);
+            }
             m_buffer->skip(data_size);
             continue;
         }

src/network/rewind_manager.cpp

@@ -94,6 +94,7 @@ void RewindManager::reset()
 
     clearExpiredRewinder();
     m_rewind_queue.reset();
+    m_missing_rewinders.clear();
 }   // reset
 
 // ----------------------------------------------------------------------------    

src/network/rewind_manager.hpp

@@ -117,6 +117,8 @@ private:
 
     bool m_schedule_reset_network_body;
 
+    std::set<std::string> m_missing_rewinders;
+
     RewindManager();
    ~RewindManager();
     // ------------------------------------------------------------------------
@@ -220,6 +222,12 @@ public:
     void resetSmoothNetworkBody()     { m_schedule_reset_network_body = true; }
     // ------------------------------------------------------------------------
     void handleResetSmoothNetworkBody();
+    // ------------------------------------------------------------------------
+    void addMissingRewinder(const std::string& name)
+                                          { m_missing_rewinders.insert(name); }
+    // ------------------------------------------------------------------------
+    bool hasMissingRewinder(const std::string& name) const
+        { return m_missing_rewinders.find(name) != m_missing_rewinders.end(); }
 
 };   // RewindManager