Fixed JAILED() test to behave as expected

tmcd/common/watchdog

@@ -41,7 +41,7 @@ my $logname	= "$LOGDIR/emulab-watchdog.debug";
 my $pidfile	= "/var/run/emulab-watchdog.pid";
 my $debug	= 0;
 my $isalivewait = ((REMOTE() == 1) ? 60 :
-		   ((JAILED() == 1) ? 600 : 180)); # Seconds to wait.
+		   (JAILED() ? 600 : 180)); # Seconds to wait.
 my $driftfile;
 my $vnodeid;