I did ci 2 changes:
- headers.c was a little bit to drastic in stressing the system.
e.g. t/op/stacks_4 ran just out of mem after allocating 800K new_blocks.
- spf_vtable did use string_make (with BUFFER_external_FLAG) after my
patch, both are wrong. string_copy i.e. make a COW string - is the way
to go.
I did only adjust _one_ occurence, but added some comments. Please have
a look at these other places marked XXX.
I have now only 2 failures (manifest ;-) and pmc_76 (75) WRT multiarray.
leo
