Fix bufPool

hashcompute.go

@@ -20,7 +20,7 @@ var bufPool = sync.Pool{
 		// The Pool's New function should generally only return pointer
 		// types, since a pointer can be put into the return interface
 		// value without an allocation:
-		return make([]uint8, 1024)
+		return &[]uint8{}
 	},
 }