Leading zeros for the serial number are not necessary anymore.
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Change-Id: Ie4ff47b9cda7ccf314c6fda9a2784947db5ee4d9
Reviewed-on: http://openocd.zylin.com/3401
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>