tahoe_cp.py: return 0 for success, instead of None

diff --git a/src/allmydata/scripts/tahoe_cp.py b/src/allmydata/scripts/tahoe_cp.py
index 26ec3515d0736917e69ffcafc0b7e8a3216c63e1..026a6cd950ff2046c64ea8b7e09487ed85796c26 100644 (file)
--- a/src/allmydata/scripts/tahoe_cp.py
+++ b/src/allmydata/scripts/tahoe_cp.py
@@ -443,6 +443,7 @@ class Copier:
             print >>self.stderr
             te.display(self.stderr)
             return 1
+        return 0
 
     def try_copy(self):
         source_specs = self.options.sources