Minor bug fix; do not burn CPU when nologins is set.

protogeni/scripts/ch_daemon.in

@@ -178,8 +178,10 @@ sub ProbeCMs()
 }
 
 while (1) {
-    next
-	if (NoLogins());
+    if (NoLogins()) {
+	sleep(5);
+	next;
+    }
 
     print "Running at ".
 	POSIX::strftime("20%y-%m-%d %H:%M:%S", localtime()) . "\n";

protogeni/scripts/expire_daemon.in

@@ -350,8 +350,10 @@ sub ReportLockedSlices()
 }
 
 while (1) {
-    next
-	if (NoLogins());
+    if (NoLogins()) {
+	sleep(5);
+	next;
+    }
     
     print "Running at ".
 	POSIX::strftime("20%y-%m-%d %H:%M:%S", localtime()) . "\n";

protogeni/scripts/sa_daemon.in

@@ -387,8 +387,10 @@ sub RenewSlices()
 }
 
 while (1) {
-    next
-	if (NoLogins());
+    if (NoLogins()) {
+	sleep(5);
+	next;
+    }
 
     print "Running at ".
 	POSIX::strftime("20%y-%m-%d %H:%M:%S", localtime()) . "\n";