Update displaytime.sh (aws#901)

Author: mvsusp

ci-scripts/displaytime.sh

@@ -18,12 +18,12 @@ echo =================== $1 execution time ===================
 
 start_time=$2
 end_time=`date +%s`
-total_time=$(expr $end_time - $start_time)
+total_time=$(expr $end_time - $start_time + 1)
 hours=$((total_time/60/60%24))
 minutes=$((total_time/60%60))
 secs=$((total_time%60))
 
 (( $hours > 0 )) && printf '%d hours ' $hours
 (( $minutes > 0 )) && printf '%d minutes ' $minutes
 (( $hours > 0 || $minutes > 0 )) && printf 'and '
-printf '%d seconds\n\n' $secs
+printf '%d seconds\n\n' $secs