# HG changeset patch
# User Dan Winship <danw@gnome.org>
# Date 1202320767 18000
# Node ID e408ff1d4a4d86895c61ae3c79ff0b3c20c72aa7
# Parent  812340a13ec21dd097429a95fdbae31e1b0385ce
pad repo files with 0 bytes, not random memory

so you can do:
  ./razor import-yum
  mv rawhide.repo rawhide.repo.orig
  make
  ./razor import-yum
  diff rawhide.repo.orig rawhide.repo

(doesn't work with system.repo at the moment...)

diff -r 812340a13ec2 -r e408ff1d4a4d razor.c
--- a/razor.c	Wed Feb 06 12:37:49 2008 -0500
+++ b/razor.c	Wed Feb 06 12:59:27 2008 -0500
@@ -261,11 +261,13 @@
 		return -1;
 
 	razor_write(fd, data, sizeof data);
+	memset(data, 0, sizeof data);
 	for (i = 0; i < ARRAY_SIZE(razor_sections); i++) {
 		if (razor_sections[i].type != i)
 			continue;
 		a = (void *) set + razor_sections[i].offset;
-		razor_write(fd, a->data, ALIGN(a->size, 4096));
+		razor_write(fd, a->data, a->size);
+		razor_write(fd, data, ALIGN(a->size, 4096) - a->size);
 	}
 
 	close(fd);