w3c benchmark: Floating point representation mismatch

[Rintarou]

This is most likely inherited from the Jena-hdt base of the client, as tests show it has the same issue.

When running queries
aggregates/agg-avg-02, aggregates/agg-min-02, aggregates/agg-sum-02, aggregates/agg-err-02
from the w3c SPARQL 1.1 compliance benchmark

with queries of the following structure:

PREFIX : <http://www.example.org/>
SELECT ?s (AVG(?o) AS ?avg)
WHERE {
	?s ?p ?o
}
GROUP BY ?s
HAVING (AVG(?o) <= 2.0)

Results give a correct answer, but with a slightly different representation than what the w3c reference expects.

Usually expected upper-case 'E' for powers of 10 are represented as lower-case 'e'.
Additionally, sometimes, numbers will be shifted towards a lower power of ten e.g:

#expected:
2.0E-1
#results:
0.2e0

attached is the Query, Results, and Expected files.
QRE.zip