Actually honor the -d argument and make sure test works

src/scripts/tests/testzeopack.py

@@ -64,7 +64,8 @@ class PackerTests(StorageTestBase):
         self.set_inet_addr()
         self.start()
         os.system("zeopack.py -h %s -p %s -d 1" % (self.host, self.port))
-        assert os.path.exists(self.path + ".old")
+        # Since we specified one day, nothing should get packed
+        assert not os.path.exists(self.path + ".old")
 
     def testAF_UNIXPack(self):
         self.addr = tempfile.mktemp(suffix=".zeo-socket")

src/scripts/zeopack.py

@@ -27,7 +27,7 @@ def main(addr, storage, days):
     # is called.  The only thing we care about, though, is that
     # registerDB() calls _startup().
     cs._startup()
-    cs.pack(wait=1, days=0)
+    cs.pack(wait=1, days=days)
 
 def usage(exit=1):
     print __doc__