[Pacemaker] Suggestion to improve movement of booth

[Jiaju Zhang]

Hi Yusuke,

On Tue, 2013-02-12 at 13:08 +0900, yusuke iida wrote:
> Hi, Jiaju
> 
> Could you please reply to this message?

My suggestion is no need to add additional configuration options, in
this case, the behavior of booth is definitive, return a negative value
in lease_promise.

That being said, for your patch, we only need the block

+	if (hdr->leased == 1) {
+		log_error("the proposal collided.");
+		return -1;	
+	}
+

Thanks,
Jiaju