The Operation Extender is followed by data which is not valid.
20
Cause . . . . . : The Operation-Extender portion of the Operation entry (positions 26 - 35) can only be followed by blanks. All data in the Operation entry after the right parenthesis of the Operation Extender is ignored.
Recovery . . . : Remove the data which is not valid following Operation Extender in the Operation entry (positions 26 - 35). Compile again.
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