api/swagger: add missing 400 response for POST /containers/{id}/wait
The /containers/{id}/wait can return a 400 (invalid argument) error if
httputils.ParseForm() fails.
@@ -7018,6 +7018,10 @@ paths:
Message:
description: "Details of an error"
type: "string"
+ 400:
+ description: "bad parameter"
+ schema:
+ $ref: "#/definitions/ErrorResponse"
404:
description: "no such container"
schema:
