Add missing spaces for consistency

[JRGTH]

Add missing spaces for jail.conf content consistency and readability.

Current:

jail1 {
  ......
  securelevel = 2;
  interface = em0;
  ip4.addr=10.0.0.100;
  
  ip6 = disable;
}

Fixed:

jail1 {
  ......
  securelevel = 2;
  interface = em0;
  ip4.addr = 10.0.0.100;
  
  ip6 = disable;
}