Small cleanup for stats adjustments

src/search.cpp

@@ -1795,35 +1795,35 @@ void update_all_stats(const Position&      pos,
     Piece                  moved_piece    = pos.moved_piece(bestMove);
     PieceType              captured;
 
-    int quietMoveBonus = stat_bonus(depth);
-    int quietMoveMalus = stat_malus(depth);
+    int bonus = stat_bonus(depth);
+    int malus = stat_malus(depth);
 
     if (!pos.capture_stage(bestMove))
     {
-        update_quiet_histories(pos, ss, workerThread, bestMove, quietMoveBonus);
+        update_quiet_histories(pos, ss, workerThread, bestMove, bonus);
 
         // Decrease stats for all non-best quiet moves
         for (Move move : quietsSearched)
-            update_quiet_histories(pos, ss, workerThread, move, -quietMoveMalus);
+            update_quiet_histories(pos, ss, workerThread, move, -malus);
     }
     else
     {
         // Increase stats for the best move in case it was a capture move
         captured = type_of(pos.piece_on(bestMove.to_sq()));
-        captureHistory[moved_piece][bestMove.to_sq()][captured] << quietMoveBonus;
+        captureHistory[moved_piece][bestMove.to_sq()][captured] << bonus;
     }
 
     // Extra penalty for a quiet early move that was not a TT move in
     // previous ply when it gets refuted.
     if (prevSq != SQ_NONE && ((ss - 1)->moveCount == 1 + (ss - 1)->ttHit) && !pos.captured_piece())
-        update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, -quietMoveMalus);
+        update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, -malus);
 
     // Decrease stats for all non-best capture moves
     for (Move move : capturesSearched)
     {
         moved_piece = pos.moved_piece(move);
         captured    = type_of(pos.piece_on(move.to_sq()));
-        captureHistory[moved_piece][move.to_sq()][captured] << -quietMoveMalus;
+        captureHistory[moved_piece][move.to_sq()][captured] << -malus;
     }
 }