convert-from-bsd-to-posix-string-and-memory-functions-20010807

convert-from-bsd-to-posix-string-and-memory-functions-20010807

bcopy, bcmp, bzero, index, rindex, you're all cut.
memcpy, memcmp, memset, strchr, strrchr, show us how it's done

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This delta was composed from multiple commits as part of the CVS->Git migration.
The checkin message with each commit was inconsistent.
The following are the additional commit messages.
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fix reference to memset the right thing

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make change to arguments globally and not just for e.g. linux/darwin/fbsd

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fix a minor flub in how this was done

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correct another bad memcpy coversion

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fix up more inadvertant turds

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fix two errors found by chas williams