tree 0e135d09faec1676bb67b8f66552467b7a7136b4
parent fdf890335455d9470f21863b01f1ecb9bf085c86
author DRC <information@libjpeg-turbo.org> 1578514955 -0600
committer DRC <information@libjpeg-turbo.org> 1578515077 -0600

Eliminate unnecessary NULL checks before tjFree()

+ document that tjFree() accepts NULL pointers without complaint.
Effectively, it has had that behavior all along, but the API does not
guarantee that tjFree() will be implemented with free() behind the
scenes, so it's best to formalize the behavior.