BIND 10 #2449: Make needed things for bindctl readline support more clear

[BIND 10 Development]

#2449: Make needed things for bindctl readline support more clear
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                   Reporter:  shane  |                 Owner:  jinmei
                       Type:         |                Status:  accepted
  enhancement                        |             Milestone:
                   Priority:         |  Sprint-20121120
  medium                             |            Resolution:
                  Component:  bind-  |             Sensitive:  0
  ctl                                |           Sub-Project:  Core
                   Keywords:         |  Estimated Difficulty:  2
            Defect Severity:  High   |           Total Hours:  0
Feature Depending on Ticket:         |
  alpha2                             |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 I've committed my suggested solution to trac2449.  Please review.

 I couldn't come up with an effective way of testing this
 automatically, so I didn't add an explicit unit test.  (Although
 indirectly, it would cause regression in some lettuce tests if we
 show the warning even if stdin isn't a terminal, in which sense we
 can at least know the code was used in the test).  If there's any
 effective and meaningful way of testing it explicitly I'll add it.

 I think the documentation update should go to #2305.  I'll make a
 comment about it in that ticket.

 I don't think we need a changelog for this.

-- 
Ticket URL: <http://bind10.isc.org/ticket/2449#comment:7>
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