Depending upon the load order of rules, the output from ip[6]tables-save
will vary, as ip[6]_tables_names is sorted LIFO.  As reported by
Linus van Geuns, this makes comparing output from ip[6]tables-save across
reboots difficult.  Attached are two patches which attempt to fix this.

  1) Sort by default - add 'u' option to unsort
  2) Unsorted by default - add 's' option to sort

Please apply whichever is preferable.

This closes bugzilla #580.

Phil

Signed-off-by: Phil Oester <kernel@linuxace.com>

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v2: Add option to disable sorting - feedback from Maciej Żenczykowski
v3: Provide two patches