Add missing file mod

pcbnew/footprint.h

@@ -1047,11 +1047,11 @@ private:
     wxArrayString*                m_initial_comments;  // s-expression comments in the footprint,
                                                        // lazily allocated only if needed for speed
 
-    SHAPE_POLY_SET  m_courtyard_cache_front;  // Note that a footprint can have both front and back
-    SHAPE_POLY_SET  m_courtyard_cache_back;   // courtyards populated.
+    SHAPE_POLY_SET   m_courtyard_cache_front; // Note that a footprint can have both front and back
+    SHAPE_POLY_SET   m_courtyard_cache_back;  // courtyards populated.
     mutable MD5_HASH m_courtyard_cache_front_hash;
     mutable MD5_HASH m_courtyard_cache_back_hash;
-    mutable std::mutex      m_courtyard_cache_mutex;
+    mutable std::mutex m_courtyard_cache_mutex;
 };
 
 #endif     // FOOTPRINT_H