code polishing to be consistent with other scripts
Change-Id: Ib52a92f48df9d2bdf543792b856e33aa04dbebe3
Signed-off-by: Radek Dostal <radek.dostal@streamunlimited.com>
Reviewed-on: http://openocd.zylin.com/2779
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>