supp.supp

{
    ignore_libreadline_leaks
    Memcheck:Leak
    ...
    obj:*/libreadline.so.*
}
{
    ignore_bin_leaks
    Memcheck:Leak
    obj:/bin/*
}
{
    ignore_usr_bin_leaks
    Memcheck:Leak
    ...
    obj:/usr/bin/*
}
{
    leak add_history
    Memcheck:Leak
    ...
    fun:add_history
}