debian: fix missing local import in apparmor profile
Installing bind9 current breaks AppArmor because its profile references a non-existant local override:
$ sudo apt-get install -y bind9
$ sudo dpkg-reconfigure apparmor
AppArmor parser error for /etc/apparmor.d in
/etc/apparmor.d/usr.sbin.named at line 69: Could not open
'local/usr.sbin.named'
When installing bind9, create an empty file for the local abstraction if one doesn't exist.
Signed-off-by: Eric Chiang ericchiang@google.com