temporary cache file not cleaned up when using --add on a loaded profile

[Jamie Strandboge]

# setup with 2.13.2
$ mkdir -p /tmp/aa/profiles /tmp/aa/cache
$ cp /etc/apparmor.d/sbin.dhclient /tmp/aa/profiles/
$ sudo apparmor_parser --remove /tmp/aa/profiles/sbin.dhclient
$ sudo ls /tmp/aa/cache/*
ls: cannot access '/tmp/aa/cache/*': No such file or directory

# load the profile
$ sudo apparmor_parser --cache-loc=/tmp/aa/cache --write-cache --add /tmp/aa/profiles/sbin.dhclient
$ sudo ls /tmp/aa/cache/*
sbin.dhclient

# try to --add again
$ sudo apparmor_parser --cache-loc=/tmp/aa/cache --write-cache --add /tmp/aa/profiles/sbin.dhclient
apparmor_parser: Unable to add "/sbin/dhclient". Profile already exists
$ sudo ls /tmp/aa/cache/*
sbin.dhclient sbin.dhclient-ePnXLt

I saw this behavior with 2.12 as well.