[companion-integrate] RTI - libpcap, fix ownership of man3 directory

[Eric Boutilier]

Requesting integration approval for a one-line change in libpcap
prototype_com file.

- Code reviewers:
   Paul Cunningham and Steve Christensen

- Details of the change:
   The ownership for sfw/man/man3 should be `root bin' not `bin bin'.

- Diffs and code review:
   http://www.opensolaris.org/jive/thread.jspa?threadID=18911&tstart=0

Eric