difftime/1-1: eliminate sleep

No need to sleep for 1 sec, we can compute second time
immediately and pass it to difftime.

Suggested-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
1 file changed