Make the rev be 0.53pre...
diff --git a/busybox.spec b/busybox.spec
index f3c2b73..78d8fa5 100644
--- a/busybox.spec
+++ b/busybox.spec
@@ -1,6 +1,6 @@
 %define name	busybox
 %define epoch   0
-%define version	0.52
+%define version	0.53pre
 %define release	%(date -I | sed -e 's/-/_/g')
 %define serial  1