[bug #68079] Webread fails with simple call

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Update of bug #68079 (group octave):

             Assigned to:                    None => rik5

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Follow-up Comment #4:

I probably did this so I'm assigning the bug to myself.  I will have a fix for
the 11.2 release.

The first part of Dmitri's patch is correct.  The classdef *weboptions* should
accept an empty value in order to remove a function handle *ContentReader*.

The second change can't be made because *disp* and *display* are different in
a classdef context.  *disp* is called by the interpreter to display an object
after it has already printed out information about the name of the variable.
*display* sends text directly to stdout.

If the change is made, the onscreen text is


octave:1> w = weboptions 
output =   weboptions with properties:

      CharacterEncoding: 'auto'
              UserAgent: 'Octave/11.1.1'
                Timeout: 5
               Username: ''
               Password: ''
                KeyName: ''
               KeyValue: ''
            ContentType: 'auto'
          ContentReader: []
              MediaType: 'auto'
          RequestMethod: 'auto'
            ArrayFormat: 'csv'
           HeaderFields: {}
    CertificateFilename: ''


With use of *disp* the text is 


octave:1> w = weboptions 
w =

  weboptions with properties:

      CharacterEncoding: 'auto'
              UserAgent: 'Octave/11.1.1'
                Timeout: 5
               Username: ''
               Password: ''
                KeyName: ''
               KeyValue: ''
            ContentType: 'auto'
          ContentReader: []
              MediaType: 'auto'
          RequestMethod: 'auto'
            ArrayFormat: 'csv'
           HeaderFields: {}
    CertificateFilename: ''


I'll have to look more into the C++ code about the wrong type argument.


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