scripts/create_node.py: remove empty-string defaults for --introducer= and --nickname=

diff --git a/src/allmydata/scripts/create_node.py b/src/allmydata/scripts/create_node.py
index 84259d27a6a7de1e63d4df09ce6c8a842624515e..7ef66b954d42c18264701ef20b1c1da1211b3485 100644 (file)
--- a/src/allmydata/scripts/create_node.py
+++ b/src/allmydata/scripts/create_node.py
@@ -9,8 +9,8 @@ class CreateClientOptions(BasedirMixin, usage.Options):
         # we provide create-client -time options for the most common
         # configuration knobs. The rest can be controlled by editing
         # tahoe.cfg before node startup.
-        ("nickname", "n", "", "nickname for this node"),
-        ("introducer", "i", "", "introducer FURL to use"),
+        ("nickname", "n", None, "nickname for this node"),
+        ("introducer", "i", None, "introducer FURL to use"),
         ("webport", "p", "tcp:8123:interface=127.0.0.1",
          "which TCP port to run the HTTP interface on. Use 'none' to disable."),
         ]