Fix argspec for webfaction modules

* Fixing webfaction_domain "subdomains" argument parsing - must coerce to list, not string
* Fixing webfaction_db and webfaction_app "machine" argument default

lib/ansible/modules/cloud/webfaction/webfaction_app.py

@@ -82,7 +82,6 @@ options:
     machine:
         description:
             - The machine name to use (optional for accounts with only one machine)
-        default: False
 
 '''
 
@@ -116,7 +115,7 @@ def main():
             port_open=dict(required=False, type='bool', default=False),
             login_name=dict(required=True),
             login_password=dict(required=True, no_log=True),
-            machine=dict(required=False, default=False),
+            machine=dict(required=False, default=None),
         ),
         supports_check_mode=True
     )

lib/ansible/modules/cloud/webfaction/webfaction_db.py

@@ -67,7 +67,6 @@ options:
     machine:
         description:
             - The machine name to use (optional for accounts with only one machine)
-        default: false
 '''
 
 EXAMPLES = '''
@@ -106,7 +105,7 @@ def main():
             password=dict(required=False, default=None, no_log=True),
             login_name=dict(required=True),
             login_password=dict(required=True, no_log=True),
-            machine=dict(required=False, default=False),
+            machine=dict(required=False, default=None),
         ),
         supports_check_mode=True
     )

lib/ansible/modules/cloud/webfaction/webfaction_domain.py

@@ -93,7 +93,7 @@ def main():
         argument_spec=dict(
             name=dict(required=True),
             state=dict(required=False, choices=['present', 'absent'], default='present'),
-            subdomains=dict(required=False, default=[]),
+            subdomains=dict(required=False, default=[], type='list'),
             login_name=dict(required=True),
             login_password=dict(required=True, no_log=True),
         ),