HPCC-10418 Remove extra characters from WsEcl JSONTest page

Fix cosmetic issue in wsecl3_jsontest.xslt.  Line showing target
and query id shows "s/s" be should just be "/".

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Merge pull request #5569 from afishbeck/jsonTestPageExtraChars

HPCC-10418 Remove extra characters from WsEcl JSONTest page

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>