automount.service: add pkg

We need to make all autofs mount points shared, otherwise automount
doesn't work well with mount namespaces, because automount can neither
unmount in other namespaces nor does it mount on top of directories
which already have a mount in another namespace ("Too many levels of
symbolic link"-phenomenon)

misc_systemd_units/automount.service

@@ -7,7 +7,7 @@ After=basic.target
 Type=forking
 ExecStartPre=/usr/sbin/make-automaps
 ExecStart=/usr/sbin/automount -v 
-ExecStartPost=/usr/bin/bash -c "for d in home jbod confidential project package scratch src;do mount --make-shared /$d;done"
+ExecStartPost=/usr/bin/bash -c "for d in home jbod confidential project package scratch src pkg;do mount --make-shared /$d;done"
 PIDFile=/run/autofs-running
 ExecReload=/bin/kill -HUP $MAINPID