BIND 10 #343: Error message for failing to remove config data is hard to understand

[BIND 10 Development]

#343: Error message for failing to remove config data is hard to understand
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      Reporter:  zhanglikun    |        Owner:  jelte    
          Type:  defect        |       Status:  reviewing
      Priority:  major         |    Milestone:           
     Component:  Unclassified  |   Resolution:           
      Keywords:                |    Sensitive:  0        
Estimatedhours:  0.0           |        Hours:  0        
      Billable:  1             |   Totalhours:  0        
      Internal:  0             |  
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Comment(by jelte):

 Hmm, found this old ticket that has been assigned to me for ages. Sorry
 for not looking at it earlier.

 I think these changes are useful, but they do not address the problem (one
 of the new errors does not explain it better than the old, i.e. that 'add'
 and 'remove' only work on lists).

 There were a few related changes in #202 (merged) and #384 (ongoing). I'm
 thinking of applying these changes in #384, and fixing the message a bit
 further there (then close this ticket), is that ok?

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Ticket URL: <http://bind10.isc.org/ticket/343#comment:3>
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