A list with one column per line and rows separated by a blank line.
.IP "\fBhtml\fR"
HTML tables.
-.IP "\fBcvs\fR"
+.IP "\fBcsv\fR"
Comma-separated values as defined in RFC 4180.
.IP "\fBjson\fR"
JSON format as defined in RFC 4627. The output is a sequence of JSON