libc: Add pdfork to the list of interposed system calls
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Authored by markj on Dec 6 2021, 11:06 PM.

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Summary

Commmit 21f749da82e7 ("libthr: wrap pdfork(2), same as fork(2).") did
the legwork to implement libthr interposition of pdfork(2), but it seems
that the libc build also needs to be updated to point to the C
implementation. Otherwise the asm stub is used and interposition does
not work.