Corrected test method and variable names for JSONBAgg.
Corrected test method and variable names for JSONBAgg.

This is probably a hangover from when the aggregate function was
originally called JSONAgg during development.

atul-bhouraskar/django,rsalmaso/django,felixxm/django,blighj/django,auvipy/django,django/django,shaib/django,takis/django,shaib/django,blighj/django,felixxm/django,takis/django,auvipy/django,solarissmoke/django,manhhomienbienthuy/django,MarkusH/django,blighj/django,django/django,takis/django,apollo13/django,ghickman/django,dsanders11/django,monetate/django,ghickman/django,django/django,pauloxnet/django,ghickman/django,apollo13/django,solarissmoke/django,dsanders11/django,solarissmoke/django,atul-bhouraskar/django,monetate/django,MarkusH/django,ghickman/django,takis/django,dsanders11/django,monetate/django,shaib/django,rsalmaso/django,pauloxnet/django,MarkusH/django,manhhomienbienthuy/django,atul-bhouraskar/django,auvipy/django,solarissmoke/django,blighj/django,monetate/django,manhhomienbienthuy/django,apollo13/django,manhhomienbienthuy/django,auvipy/django,felixxm/django,apollo13/django,rsalmaso/django,pauloxnet/django,dsanders11/django,pauloxnet/django,atul-bhouraskar/django,django/django,rsalmaso/django,felixxm/django,MarkusH/django,shaib/django