file.symlink should not try to set ownership to root:root

[bbinet]

Description of Issue/Question

When I run a simple state to create a symlink with file.symlink, salt tries to set ownership to root:root whereas I'm not running salt as root (masterless setup).

After investigating, it seems that __opts__['user'] is set to root while it should be set to bruno which is the user that runs the salt command.
See https://github.com/saltstack/salt/blob/2016.11/salt/states/file.py#L863-L864

Setup

(Please provide relevant configs and/or SLS files (Be sure to remove sensitive info).)

symling_test:
  file.symlink:
  - name: {{ grains['root'] }}/symlink
  - target: {{ grains['root'] }}/

Steps to Reproduce Issue

(Include debug logs if possible and relevant.)

$ python2.7 .tmp/thin/salt-call -c /home/bruno/dev/setupify --state-output=changes state.sls test
[WARNING ] Although 'dmidecode' was found in path, the current user cannot execute it. Grains output might not be accurate.
[ERROR   ] {'new': '/home/bruno/dev/setupify/symlink'}
local:
----------
          ID: symling_test
    Function: file.symlink
        Name: /home/bruno/dev/setupify/symlink
      Result: False
     Comment: Created new symlink /home/bruno/dev/setupify/symlink -> /home/bruno/dev/setupify/, but was unable to set ownership to root:root
     Started: 16:30:46.619745
    Duration: 10.644 ms
     Changes:   
              ----------
              new:
                  /home/bruno/dev/setupify/symlink

Summary for local
------------
Succeeded: 0 (changed=1)
Failed:    1
------------
Total states run:     1
Total run time:  10.644 ms

Versions Report

(Provided by running salt --versions-report. Please also mention any differences in master/minion versions.)

$ python2.7 .tmp/thin/salt-call -c /home/bruno/dev/setupify  --versions-report
Salt Version:
           Salt: 2016.11.0-11-g47d21d9
 
Dependency Versions:
           cffi: 0.8.6
       cherrypy: 2.3.0
       dateutil: 2.6.0
          gitdb: Not Installed
      gitpython: Not Installed
          ioflo: Not Installed
         Jinja2: 2.8
        libgit2: Not Installed
        libnacl: Not Installed
       M2Crypto: Not Installed
           Mako: Not Installed
   msgpack-pure: Not Installed
 msgpack-python: 0.4.8
   mysql-python: 1.2.3
      pycparser: 2.10
       pycrypto: 2.6.1
         pygit2: Not Installed
         Python: 2.7.9 (default, Jun 29 2016, 13:08:31)
   python-gnupg: Not Installed
         PyYAML: 3.12
          PyZMQ: Not Installed
           RAET: Not Installed
          smmap: Not Installed
        timelib: Not Installed
        Tornado: 4.4.2
            ZMQ: Not Installed
 
System Versions:
           dist: debian 8.6 
        machine: x86_64
        release: 4.3.0-0.bpo.1-amd64
         system: Linux
        version: debian 8.6

[stale]

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