I went ahead, added a commit message, and pushed your patch to the default branch:
https://hg.savannah.gnu.org/hgweb/octave/rev/976638dd9021

Marking as ready for test.

I don't think your latest change is the right thing for printing "]".  Maybe the attached change instead?  But now this is not such a trivial change and I'm not sure of the best way to indicate that a character array has been truncated.

I tested with

classdef boolmxcls
  properties
    x01 = reshape (1:9, 1, 9);
    x02 = reshape (1:10, 1, 10);
    x03 = reshape (1:11, 1, 11);
    x04 = reshape (1:8, 2, 4)';
    x05 = reshape (1:10, 2, 5)';
    x06 = reshape (1:12, 2, 6)';
    x07 = reshape (1:9, 9, 1);
    x08 = reshape (1:10, 10, 1);
    x09 = reshape (1:11, 11, 1);
    x10 = reshape (1:8, 4, 2)';
    x11 = reshape (1:10, 5, 2)';
    x12 = reshape (1:12, 6, 2)';
    x20 = @sin;
    x21 = 13;
    x22 = {1, 2, 3, "foobar"};
    x23 = 1:2:200;
    x24 = struct ('a', {1, 2, 3}, 'b', {4, 5, 6});
    x25 = "this is a very long string this is a very long string this is a very long string this is a very long string this is a very long string this is a very long string";
  endproperties
endclassdef

(file #55971)

Maybe it should also add a final "]" character so that it displays

[1 2 3 ...]

instead of

[1 2 3 ...

?

As noted in bug #62432, `short_disp` doesn't indicate that an array was truncated when it has more than a (hard-coded) number of elements.

It would probably ideal if `short_disp`

• would append an ellipsis to truncated arrays,
• had a configurable number of maximum elements to display,
• had a notion of line length of the console output.

I have a patch for the first item almost ready.