Did SCO 'Borrow' Linux Code?

An Anonymous Reader writes "Apparently someone inside SCO has stated that SCO(actually Caldera) copied Linux code into System V. They did it to build what they now market as Linux Kernel Personality - the ability to run Linux software on their Unix. Now, the open source community(of course they don't mention who) is jumping on this, because they didn't return the changes to the OS community or give the community credit. Of course, SCO says it's a misunderstanding and, get this 'SCO also never used any of the Linux kernel code.'"