Json's column output is cut off at 80 characters.

[liangdefeng]

SQLcl version: 17.4.0.354.2224 and 18.2 tested. The result is the same. I used SQLcl to execute an SQL which output a column whose type is clob and contains string longer than 80. I found that the column's output in csv is OK, but only output the first 80 characters in json.