It caused config(1) to crash on the following assert() if the list was used.
This bug shows up after the recent change in files.c which fixed a memory leak.
pointed out by dogcow@
reviewed by cube@
does is cause confusion when I try to add default values for defparam.
Also if malloc()/free() aren't efficient enough for us, we ought to fix
them rather than having local free list - so kill the local free lists.