support/scripts/cve.py: start in 1999
When the CVE lookup was added in commit
4a157be9efac8ba8888e4972f42eda213077152c, the starting year of the JSON
files was set to 2002. However, there are also CVEs from 1999, 2000 and
2001. It is not clear why these were skipped back then.
Set the start year to 1999 to capture these old CVEs too.
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>