Ensure args are checked against form body

Required for XML definitions but erroneously removed during file parsing
reworking.

api-daemon/pvcapid/flaskapi.py

@@ -169,7 +169,7 @@ class RequestParser(object):
                     action=reqarg.get('action', None),
                     choices=reqarg.get('choices', ()),
                     help=reqarg.get('helptext', None),
-                    location='args'
+                    location=['args','form']
                 )
             reqargs = parser.parse_args()
             kwargs['reqargs'] = reqargs