[rancid] flip-flopping device diff

[William Yardley]

I have a device which is flip-flopping every time rancid runs... to me,
the two versions look exactly the same. To the best of my knowledge,
nothing has changed in our setup. It's been going back and forth for 24
hours at least.

$ cvs diff -r 1.47 -u devicename 
Index: devicename
===================================================================
RCS file: /cvs/cvsroot/rancid/configs/devicename,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -r1.47 -r1.48
--- devicename    26 Mar 2007 11:05:22 -0000      1.47
+++ devicename    26 Mar 2007 19:05:18 -0000      1.48
@@ -55,8 +55,6 @@
 !
 !Slot 1: type 100BaseTX-ISL, 1 ports
 !Slot 1: hvers 1.4 rev B0
-!Slot 1: hvers 1.4 rev B0
-!Slot 1: part 73-1688-05, serial 17841895
 !Slot 1: part 73-1688-05, serial 17841895
 !
 !Slot 3: type T3 PA, 1 ports

I used "cat -v" and "od -c" to try and see if there were any obvous 
$ cvs diff -r 1.47 -u devicename  | cat -v -e
Index: devicename$
===================================================================$
RCS file: /cvs/cvsroot/rancid/configs/devicename,v$
retrieving revision 1.47$
retrieving revision 1.48$
diff -u -r1.47 -r1.48$
--- devicename    26 Mar 2007 11:05:22 -0000      1.47$
+++ devicename    26 Mar 2007 19:05:18 -0000      1.48$
@@ -55,8 +55,6 @@$
 !$
 !Slot 1: type 100BaseTX-ISL, 1 ports$
 !Slot 1: hvers 1.4 rev B0$
-!Slot 1: hvers 1.4 rev B0$
-!Slot 1: part 73-1688-05, serial 17841895$
 !Slot 1: part 73-1688-05, serial 17841895$
 !$
 !Slot 3: type T3 PA, 1 ports$

$ cat /tmp/diff 
!Slot 1: hvers 1.4 rev B0
!Slot 1: hvers 1.4 rev B0
$ od -c /tmp/diff 
0000000   !   S   l   o   t       1   :       h   v   e   r   s       1
0000020   .   4       r   e   v       B   0  \n   !   S   l   o   t    
0000040   1   :       h   v   e   r   s       1   .   4       r   e   v
0000060       B   0  \n
0000064