Github user afs commented on the issue:
https://github.com/apache/jena/pull/473
I got sidetracked :-) last time. The code in this area is ancient.
Text format isn't like the other formats because (1) it is isn't
self-contained, It needs prefixes for abbreviation and (2) there isn't an input
version.
Where are you wanting to output text format?
`QueryExecutils.outputResultSet` handles it - making
`ResultSetFormatter.output(OutputStream, ResultSet, ResultsFormat)` do the same
(lookup properly for first-class results formats, and have some adapter code to
handle the other ways) is one way. Would that work or you?
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