There is nothing in that log for any organizations API query:

pwd
/var/vcap/sys/log/cloud_controller_ng

ls -ltr
total 16760
-rw-r----- 1 vcap vcap 239706 Aug 30 13:15 pre-start.stdout.log
-rw-r----- 1 vcap vcap 0 Aug 30 13:16 post-start.stdout.log
drwxr-xr-x 2 vcap vcap 4096 Aug 30 15:52 drain
-rw-r----- 1 vcap vcap 11378 Aug 30 15:53 pre-start.stderr.log
-rw-r--r-- 1 vcap vcap 240 Aug 30 15:53 cloud_controller_ng_ctl.err.log
-rw-r--r-- 1 vcap vcap 605 Aug 30 15:53 cloud_controller_ng_ctl.log
-rw-r--r-- 1 vcap vcap 496 Aug 30 15:53 cloud_controller_worker_ctl.err.log
-rw-r----- 1 vcap vcap 3618 Aug 30 15:53 post-start.stderr.log
-rw-r--r-- 1 vcap vcap 6577 Aug 30 15:54 cloud_controller_worker_ctl.log
-rw-r--r-- 1 vcap vcap 16877018 Aug 30 17:43 cloud_controller_ng.log

grep 'v2/org' cloud_controller_ng.log; echo $?
1