PSARC 2007/465 pktool symmetric key enhancements

[Wyllys Ingersoll]

The case directory for PSARC 2007/465 has copies of the proposed
man page changes.

pktool.1 - current page
pktool.1.new - proposed new page
pktool.1.diff - context diffs between old and new

-Wyllys Ingersoll