MFC: Add very limited support for the isc-dhclient. It will almostly certaintly only work if there's just one interface doing dhcp. This version implements the same logic as the version in the PR, but uses pgrep to be less verbose.
MFC: Add very limited support for the isc-dhclient. It will almostly certaintly
only work if there's just one interface doing dhcp. This version implements
the same logic as the version in the PR, but uses pgrep to be less verbose.

PR:		conf/95905

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