Do not split an empty line

Prevents error: "ValueError: need more than 1 value to unpack"

Signed-off-by: Kévin THIERRY <kevin.thierry@open.eurogiciel.org>
Only display Jira entries when status are older

That way closed issues (or issues that should be closed), that aren't
relevant anymore, are not part of the spreadsheet.

Signed-off-by: Kévin THIERRY <kevin.thierry@open.eurogiciel.org>