rtc.c: fix decoding of struct rtc_wkalrm

* rtc.c (decode_rtc_wkalrm): Print field name of struct rtc_wkalrm.time.
diff --git a/rtc.c b/rtc.c
index bf88929..f7ea81b 100644
--- a/rtc.c
+++ b/rtc.c
@@ -59,7 +59,7 @@
 	struct rtc_wkalrm wk;
 
 	if (!umove_or_printaddr(tcp, addr, &wk)) {
-		tprintf("{enabled=%d, pending=%d, ", wk.enabled, wk.pending);
+		tprintf("{enabled=%d, pending=%d, time=", wk.enabled, wk.pending);
 		print_rtc_time(tcp, &wk.time);
 		tprints("}");
 	}