encoding/jsonschema: remove space in date-time format name
This space was not intended to be present!
Fixes #3454.
Signed-off-by: Roger Peppe <rogpeppe@gmail.com>
Change-Id: I1f8cce1a2237403560e11d5467ec1e240206908b
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1201352
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>