Allow release generation from a WORLDDIR that is not /usr/src
Allow release generation from a WORLDDIR that is not /usr/src

PR:		misc/159666
Submitted by:	Test Rat <ttsestt@gmail.com>
Reviewed by:	Nathan Whitehorn <nwhitehorn@freebsd.org>
Approved by:	re (kib)

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