Small bugfix for JFS label code

[Ajay Ramaswamy <xfs@xxxxxxxxxxxxx>]

Hello,
I seem to have sent you a bad patch with the JFS label handling code, Please 
add this little chunk which is missing in the previous patch I sent you. This 
is against the current rawhide anaconda.

Thanks & best regards
Ajay

--- anaconda-9.3/fsset.py~	2004-01-05 21:29:25.605484998 +0530
+++ anaconda-9.3/fsset.py	2004-01-05 21:29:56.487552828 +0530
@@ -476,6 +476,9 @@
 	                            ["jfs_tune", "-L", label, devicePath],
                                     stdout = "/dev/tty5",
                                     stderr = "/dev/tty5")
+        if rc:
+            raise SystemError
+        entry.setLabel(label)
 
     def formatDevice(self, entry, progress, chroot='/'):
         devicePath = entry.device.setupDevice(chroot)