add available-space to VERSION_DEFAULTS

as per warner's suggestion in https://github.com/warner/tahoe-lafs/pull/4

diff --git a/src/allmydata/storage_client.py b/src/allmydata/storage_client.py
index f8b19d6646546b987d4188745f80983ff37f557f..e532db1a68d8658d60d06cd347c25f90ba6b2fa0 100644 (file)
--- a/src/allmydata/storage_client.py
+++ b/src/allmydata/storage_client.py
@@ -182,6 +182,7 @@ class NativeStorageServer:
           "maximum-mutable-share-size": 2*1000*1000*1000, # maximum prior to v1.9.2
           "tolerates-immutable-read-overrun": False,
           "delete-mutable-shares-with-zero-length-writev": False,
+          "available-space": None,
           },
         "application-version": "unknown: no get_version()",
         }