Sample Code Field in working storage: 05 S-EOF-CHECK PIC X(01). 88 S-NOT-END-OF-FILE VALUE 'N'. 88 S-END-OF-FILE VALUE 'Y'. MAINLINE. SET S-END-OF-FILE TO TRUE PERFORM A0100-PRINT-DETAIL-AND-FOOTERS UNTIL S-END-OF-FILE END-PERFORM. Using the sample working storage and mainline section of a program, which one of the following is the coding error that occurred in the sample above?