IGZ0038S A reference modification length value of `reference-modification-value` on line `line-number` which was not equal to 1 was found in a reference to data item `data-item` which was passed by value.

Explanation
 The length value in a reference modification specification
was not equal to 1. The length value must be equal to 1.

System action
 The application was terminated.

Programmer response
 Check the indicated line number in the
program to ensure that any reference modified length values are (or
will resolve to) 1.

Symbolic Feedback Code
 IGZ016

IGZ0038S A reference modification length value of reference-modification-value on line line-number which was not equal to 1 was found in a reference to data item data-item which was passed by value.