Binary Search: Resolve the error about WS-ARRAY.

[borderite]

• While the test assumes that WS-ARRAY is a string, the template cobol code delcared it as an integer array. The revised template now declares WS-ARRAY as a string.

[github-actions]

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[axtens]

IIRC (and there's some doubt) I may have put

       01 WS-ARRAY-TABLE.
         02 WS-ARRAY               OCCURS 1 TO 20 DEPENDING ON WS-COUNT.
            05 ROWELEM             PIC 9(4).

in as a clue to the student. Maybe that's a bit too much hand-holding.

[axtens]

@kapitaali Comments?

[kapitaali]

Aye ok yes, fine by me.