Since route(8) itself is no longer setuid, we can get a meaningful answer for the euid.  As a result, fix it such that setuid scripts or programs may call route(8) to do work on their behalf.
Since route(8) itself is no longer setuid, we can get a meaningful
answer for the euid.  As a result, fix it such that setuid scripts or
programs may call route(8) to do work on their behalf.

Reviewed by:	ru
MFC after:	3 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase