salt-ssh fails if config path contains spaces

Expected Behavior

salt-ssh runs and executes commands on minion

Actual Behavior

salt-ssh fails to deploy thin version

Steps to Reproduce Issue

create mini config following guide https://blog.logentries.com/2015/04/salt-ssh-for-remote-execution-of-states-and-modules/. but put it a path containing spaces

turn on debug mode and you will see that it tries to execute a command like

DEBUG   ] Executing command: scp   -o KbdInteractiveAuthentication=no -o PasswordAuthentication=no -o GSSAPIAuthentication=no -o ConnectTimeout=65 -o Port=22 -o IdentityFile=~/.ssh/id_rsa -o User=root  /Users/askholme/Devel/care 2 reuse/infrastructure/salt/var/cache/salt/master/thin/thin.tgz 104.236.216.105:/tmp/.root_5cf76b_salt/salt-thin.tgz

this fails because the local path to thin.tgz is not enclosed in double qoutes.

Versions Report

* Provided by running salt --versions-report*

Salt Version:
           Salt: 2015.8.5

Dependency Versions:
         Jinja2: 2.8
       M2Crypto: 0.21.1
           Mako: Not Installed
         PyYAML: 3.11
          PyZMQ: 15.2.0
         Python: 2.7.10 (default, Oct 23 2015, 18:05:06)
           RAET: Not Installed
        Tornado: 4.3
            ZMQ: 4.1.4
           cffi: Not Installed
       cherrypy: Not Installed
       dateutil: 1.5
          gitdb: Not Installed
      gitpython: Not Installed
          ioflo: Not Installed
        libgit2: Not Installed
        libnacl: Not Installed
   msgpack-pure: Not Installed
 msgpack-python: 0.4.6
   mysql-python: Not Installed
      pycparser: Not Installed
       pycrypto: 2.6.1
         pygit2: Not Installed
   python-gnupg: Not Installed
          smmap: Not Installed
        timelib: Not Installed

System Versions:
           dist:
        machine: x86_64
        release: 15.2.0
         system: 10.11.2 -- x86_64

Start with the salt-ssh thin deployment path that builds the scp command, then reproduce the issue using a configuration path containing spaces and debug output. Done means salt-ssh deploys the thin version and executes commands successfully with such a path.