#5 bzero() issues

[Dylan Neild]

bzero is used in various places.

1. bzero is depreceated and needs to be replaced with memset() in all instances.

1. Some of these are not needed. Identify what are the minimum necessary/safe uses of bzero/memset and remove all the others.

[Dylan Neild]

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All calls to bzero() have been replaced with memset() calls.
Determing which ones are necessary at all is still needed.

[Ben Asselstine]

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bzero should be removed completely
it is safe to replace all occurrances of bzero with memset.