Simplify data-type description in UNLIST

Author: mrotteveel

doc/sql.extensions/README.unlist

@@ -27,8 +27,7 @@ Syntax Rules:
    value from another inside the input string). It may also be a BLOB TEXT value, limited to 32KB. If an empty string is
    specified, the output will be just one record containing the input string. If omitted, the comma character is used as
    a delimiter.
-2) <data-type>: target data type to convert the output values into. Alternatively, a domain can be specified as
-   the returned type. If omitted, VARCHAR(32) is implied. Feel free to suggest any better alternative default.
+2) <data-type>: target data type or domain to convert the output values into. If omitted, VARCHAR(32) is used.
 3) <correlation-name>: alias of the record set returned by the UNLIST function. It is a mandatory parameter.
 4) <column-name>: optional alias of the column returned by the UNLIST function. If omitted, UNLIST is used as an alias.