COBCH1735 For UNSTRING on string objects the DELIMITED phrase must be used

The unstring statement has been specified without the delimited phrase.
In Managed COBOL, the delimited phrase must be specified when referencing string objects.
01 prodname string value "Micro Focus - Visual COBOL".
01 compname string.
unstring prodname into compname                  *> incorrect
unstring prodname delimited by "-" into compname *> correct