delete the data in the arglist when the list is destroyed,

delete the data in the arglist when the list is destroyed,
not while printing out the data.  This allows the data
to be dumped more than once.

base/cprintf.hh:
    need a destructor

--HG--
extra : convert_revision : 235e9fe24488ac4c0ae1b562ef9fa6e0bd1e899c