rxtx factor should be a float

The rxtx factor on compute flavors is a float in the API. OSC is
currently blocking float values.

Change-Id: Ifa9c14825f388d2821ff4b63ab8ae83fa9c8d88b

Author: sdague

doc/source/command-objects/flavor.rst

@@ -49,7 +49,7 @@ Create new flavor
 
 .. option:: --rxtx-factor <factor>
 
-    RX/TX factor (default 1)
+    RX/TX factor (default 1.0)
 
 .. option:: --public
 

openstackclient/compute/v2/flavor.py

@@ -76,10 +76,10 @@ def get_parser(self, prog_name):
         )
         parser.add_argument(
             "--rxtx-factor",
-            type=int,
+            type=float,
             metavar="<factor>",
-            default=1,
-            help="RX/TX factor (default 1)",
+            default=1.0,
+            help="RX/TX factor (default 1.0)",
         )
         public_group = parser.add_mutually_exclusive_group()
         public_group.add_argument(