Fix a bug that was causing incorrect warning from --monitor.

ChangeLog

@@ -1,3 +1,6 @@
+Changes Prior to this release
+    -   --monitor was producing some meaningless warnings due to a bug.
+
 Changes Prior to 2.6 release
     -   Fixed UUID printing in "--detail --brief" for version1 metadata.
     -   --update=resync did exactly the wrong thing for version1 metadata.

Monitor.c

@@ -383,7 +383,7 @@ int Monitor(mddev_dev_t devlist,
 						)
 						alert("SpareActive", dev, dv, mailaddr, mailfrom, alert_cmd, dosyslog);
 				}
-				st->devstate[i] = disc.state;
+				st->devstate[i] = newstate;
 				st->devid[i] = makedev(disc.major, disc.minor);
 			}
 			st->active = array.active_disks;