filesystems description should match nics in vmadm(1M)

[szaydel]

After reviewing the manpage for vmadm I think that section that describes filesystems does not exactly match with sections that describe disks or nics.

It looks like the heading is filesystems: plural and all sub-sections, if they were to match the formatting should be headed with:

filesystems.*.property.

For example, this should be:

     filesystems:

         This property can be used to mount additional filesystems into an OS
         VM. It is primarily intended for SDC special VMs.  The value is an
         array of objects. Those objects can have the following properties:
         source, target, raw (optional), type and options.  These are described
         below:

     filesystems.*.type:

instead it is currently:

     filesystems:

         This property can be used to mount additional filesystems into an OS
         VM. It is primarily intended for SDC special VMs.  The value is an
         array of objects. Those objects can have the following properties:
         source, target, raw (optional), type and options.  These are described
         below:

     filesystem.type:

         For OS VMs this specifies the type of the filesystem being mounted in.
         Example: lofs

         type: string (fs type)
         vmtype: OS
         listable: no
         create: yes
         update: no

[szaydel]

Pull request referenced in issue 254 addresses this inconsistent style.

[rmustacc]

Resolved in f9716b5.