Fix a comment in diff code

[Dan Hipschman]

Hi,

This is just a very minor comment fix in the diff code:


Index: analyze.c
===================================================================
RCS file: /sources/diffutils/diffutils/src/analyze.c,v
retrieving revision 1.24
diff -p -u -r1.24 analyze.c
--- analyze.c   13 Mar 2006 19:11:17 -0000      1.24
+++ analyze.c   15 Nov 2006 07:59:24 -0000
@@ -711,7 +711,7 @@ build_reverse_script (struct file_data c
   lin len0 = filevec[0].buffered_lines;
   lin len1 = filevec[1].buffered_lines;
 
-  /* Note that changedN[len0] does exist, and is 0.  */
+  /* Note that changedN[lenN] does exist, and is 0.  */
 
   lin i0 = 0, i1 = 0;