  The value of the non-equilibrium exponent $a$ is measured in the
two-dimensional (2D) Ising model quenched to below criticality from the
dynamical scaling of the zero-field-cooled and the intermediate susceptibility.
Our results fully reconfirm the expected value $a=1/2$ but are inconsistent
with the value $a=1/4$, advocated by Corberi, Lippiello and Zannetti
(cond-mat/0506139).
