If a property value contains one or more spaces, the zfs command will fail.
With value quoted this behavior is fixed.

ZFS supports "zle" compression, which compresses runs of null bytes efficiently.

Converting the argument list to a string with ' '.join causes
the shell interpreter to misparse spaces in property values.
Since the zfs command does not need shell anywhere, using
a list instead of a string works just as well with run_command. 

Fixes #3545.

Current property parser breaks when values contain spaces. Since
zfs get -H returns tab separated lines,  it is better to explicitly
split on tabs than on whitespace.

  Migrated all examples: in DOCUMENTATION=''' string to standalone EXAMPLES=''' string
  Added deprecation warning to moduledev.rst and remove deprecated example from it
  Fixed up a few typos and uppercased some acronyms.
  add consistency to how EXAMPLES are formatted