Update src/containerapp/azext_containerapp/_params.py

Co-authored-by: Xing Zhou <[email protected]>

src/containerapp/azext_containerapp/_params.py

@@ -177,7 +177,7 @@ def load_arguments(self, _):
         c.argument('name', name_type, help='Name of the Container Apps Environment.')
 
     with self.argument_context('containerapp env certificate create') as c:
-        c.argument('hostname', options_list=['--hostname'], help='The custom domain name.')
+        c.argument('hostname', help='The custom domain name.')
         c.argument('certificate_name', options_list=['--certificate-name', '-c'], help='Name of the managed certificate which should be unique within the Container Apps environment.')
         c.argument('location', options_list=['--location'], help='Location of the managed certificate which can be different from the location of the Container Apps environment.')
         c.argument('validation_method', options_list=['--validation-method', '-v'], help='Validation method of custom domain ownership.')