made the timesync failure more obvious on the rpi.

rc/bin/termrc

@@ -65,8 +65,14 @@ if(! test -e /net/dns)
 if(! ~ $terminal *vx32*){
 	# start timesync if it isn't running and we weren't told not to
 	if(! ps|grep -s timesync)
-		if(! ~ $TIMESYNCARGS '')
+		if(! ~ $TIMESYNCARGS ''){
+			# afaik the only arm platform we support is the rpi
+			# and time sync doesn't work on it.
+			if(! ~ $objtype arm)
 				aux/timesync $TIMESYNCARGS
+			if(~ $objtype arm)
+				echo 'timesync: use another source for time'
+		}
 }
 
 fn ask {