fstab improperly escaped when spaces are used in options

[littleski]

Description of Issue/Question

This is similar to issue #27160 but in the options

Setup

Basically, mounting a CIFS drive with a linux who joined an active directory. I am assuming that it should work with local group name with spaces inside too.

/mnt/share:
  mount.mounted:
    - fstype: cifs
    - persist: True
    - mkmnt: True
    - mount: True
    - device: //share.local/share
    - dump: 0
    - pass_num: 0
    - opts: credentials=/root/.smbpasswd,uid=jenkins,gid=utilisateurs\ du\ domaine

Steps to Reproduce Issue

Running the state will properly mount the drive

          ID: /mnt/share
    Function: mount.mounted
      Result: True
     Comment: Target was successfully mounted. Added new entry to the fstab.
     Started: 12:13:07.855852
    Duration: 533.336 ms
     Changes:
              ----------
              mount:
                  True
              persist:
                  new

But will not write a correct config to fstab ('\ ' instead of '\040')
Current behaviour

//share.local/share  /mnt/share  cifs  credentials=/root/.smbpasswd,uid=jenkins,gid=utilisateurs\ du\ domaine  0 0

Expected behaviour

//share.local/share /mnt/share  cifs 
 credentials=/root/.smbpasswd,uid=jenkins,gid=utilisateurs\040du\040domaine  0 0

This prevent the drive to be mounted at boot

Versions Report

Salt Version:
           Salt: 2018.3.3

Dependency Versions:
           cffi: 1.11.2
       cherrypy: Not Installed
       dateutil: 2.6.1
      docker-py: Not Installed
          gitdb: Not Installed
      gitpython: Not Installed
          ioflo: Not Installed
         Jinja2: 2.10
        libgit2: 0.26.3
        libnacl: Not Installed
       M2Crypto: Not Installed
           Mako: 0.8.1
   msgpack-pure: Not Installed
 msgpack-python: 0.5.6
   mysql-python: 1.2.5
      pycparser: 2.14
       pycrypto: 2.6.1
   pycryptodome: Not Installed
         pygit2: 0.26.4
         Python: 2.7.5 (default, Oct 30 2018, 23:45:53)
   python-gnupg: Not Installed
         PyYAML: 3.11
          PyZMQ: 14.7.0
           RAET: Not Installed
          smmap: Not Installed
        timelib: Not Installed
        Tornado: 4.4.2
            ZMQ: 4.0.5

System Versions:
           dist: centos 7.6.1810 Core
         locale: UTF-8
        machine: x86_64
        release: 3.10.0-957.1.3.el7.x86_64
         system: Linux
        version: CentOS Linux 7.6.1810 Core

[garethgreenaway]

@littleski Thanks for the report. We'll get this one fixed.