BIND 10 #717: config diff output uses single quotes

[BIND 10 Development]

#717: config diff output uses single quotes
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           Reporter:  jreed     |                      Owner:
               Type:  defect    |                     Status:  new
           Priority:  minor     |                  Milestone:
          Component:  bind-ctl  |                   Keywords:
          Sensitive:  0         |  Estimated Number of Hours:  0
Add Hours to Ticket:  0         |                  Billable?:  1
        Total Hours:  0         |                  Internal?:  0
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 config diff output uses single quotes.

 But bindctl and cfgmgr require double quotes. So if you attempt to copy
 and paste it will fail.

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Ticket URL: <http://bind10.isc.org/ticket/717>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development