[python-migrate/f18] add missing patch from previous commit

[Pádraig Brady]

commit c1b9345b1db069c5c40d91782178a44a929212d7
Author: Pádraig Brady <P at draigBrady.com>
Date:   Thu Dec 20 14:48:35 2012 +0000

    add missing patch from previous commit

 migrate-test-int-overflow.patch |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/migrate-test-int-overflow.patch b/migrate-test-int-overflow.patch
new file mode 100644
index 0000000..140d4c9
--- /dev/null
+++ b/migrate-test-int-overflow.patch
@@ -0,0 +1,12 @@
+diff -Naur sqlalchemy-migrate-0.7.2.orig/migrate/versioning/version.py sqlalchemy-migrate-0.7.2/migrate/versioning/version.py
+--- sqlalchemy-migrate-0.7.2.orig/migrate/versioning/version.py	2011-10-28 15:11:43.000000000 +0000
++++ sqlalchemy-migrate-0.7.2/migrate/versioning/version.py	2012-12-20 14:33:28.035597164 +0000
+@@ -27,7 +27,7 @@
+ 
+     def __init__(self,value):
+         self.value = str(int(value))
+-        if self < 0:
++        if int(value) < 0:
+             raise ValueError("Version number cannot be negative")
+ 
+     def __add__(self, value):