The ensure parameter documentation says:
If the value is present, the mount is entered into the mount table, but not mounted, if it is absent,
the entry is removed from the mount table and the filesystem is unmounted if currently mounted, if it
is mounted, the filesystem is entered into the mount table and mounted. Valid values are
absent, mounted, present (also called unmounted).
It does not specify what happens when the value is "present" and the filesystem is mounted. Since it does not specify that, some people might infer that it leaves the mountpoint alone. In reality, it umounts it, which I think should be stated explicitly.
Also, the actual parameter values should be at least quoted, because in such a long sentence a non-native english speaker might easily get confused as to when "absent" refers to a parameter value or the actual absence of something.
Ideally, this would all be in a nice table, but I guess that's not easy to do.
