snap errors and exists if there is a symlink to a directory in the auto_discover_path

[woodsaj]

If there is a symLink in the auto_discovery_path snapd doesn't start.

root@1baa13fabedf:~# ln -s /tmp /opt/snap/tasks
root@1baa13fabedf:~# snapd --config /etc/snap/snapd.conf 
INFO[2016-11-04T18:42:12Z] setting log level to: debug                  
INFO[2016-11-04T18:42:12Z] Starting snapd (version: test-4ac7b4d)       
INFO[2016-11-04T18:42:12Z] setting GOMAXPROCS to: 1 core(s)             
DEBU[2016-11-04T18:42:12Z] pevent controller created                     _block=new _module=control
DEBU[2016-11-04T18:42:12Z] metric catalog created                        _block=new _module=control
DEBU[2016-11-04T18:42:12Z] plugin manager created                        _block=new _module=control
DEBU[2016-11-04T18:42:12Z] signing manager created                       _block=new _module=control
DEBU[2016-11-04T18:42:12Z] runner created                                _block=new _module=control
DEBU[2016-11-04T18:42:12Z] started                                       _block=start _module=control-runner
INFO[2016-11-04T18:42:12Z] Setting work manager queue size               _block=New _module=scheduler value=25
INFO[2016-11-04T18:42:12Z] Setting work manager pool size                _block=New _module=scheduler value=4
DEBU[2016-11-04T18:42:12Z] metric manager linked                         _block=set-metric-manager _module=scheduler
INFO[2016-11-04T18:42:12Z] Configuring REST API with HTTPS set to: false  _module=_mgmt-rest
INFO[2016-11-04T18:42:12Z] REST API is enabled                          
INFO[2016-11-04T18:42:12Z] control started                               _block=start _module=control
INFO[2016-11-04T18:42:12Z] auto discover path is enabled                 _block=start _module=control
INFO[2016-11-04T18:42:12Z] autoloading plugins from: /opt/snap/plugins   _block=start _module=control
INFO[2016-11-04T18:42:12Z] autoloading plugins from: /opt/snap/tasks     _block=start _module=control
ERRO[2016-11-04T18:42:12Z] read /opt/snap/tasks/tmp: is a directory      _block=start _module=control autodiscoverpath=/opt/snap/tasks plugin=&{name:tmp size:4 mode:134218239 modTime:{sec:63613881724 nsec:11062310 loc:0x1333600} sys:{Dev:60 Ino:86 Nlink:1 Mode:41471 Uid:0 Gid:0 X__pad0:0 Rdev:0 Size:4 Blksize:4096 Blocks:0 Atim:{Sec:1478284924 Nsec:11062310} Mtim:{Sec:1478284924 Nsec:11062310} Ctim:{Sec:1478284924 Nsec:11062310} X__unused:[0 0 0]}}
root@1baa13fabedf:~#