[Xcb] [xsync] attributes of XCBSyncCreateAlarm

[Vincent Torri]

>
> I'd just fix the protocol description. I could do it instead if you prefer.

i've commited it.

>
> Regarding your naming questions about XCBExposeEvent, 
> XCBGraphicsExposureEvent, XCBConfigureRequestEvent, and 
> XCBCirculateRequestEvent; I think Jamey uses the published X Protocol 
> reference as his primary source of names and types. I don't have a copy 
> myself.

I'll wait for Jamey's answer, then

thank you

Vincent