only pass one func to exception kwarg in access decorator

atst/routes/task_orders/new.py

@@ -265,7 +265,7 @@ def is_new_task_order(*_args, **kwargs):
 @task_orders_bp.route("/portfolios/<portfolio_id>/task_orders/new/<int:screen>")
 @user_can(
     Permissions.CREATE_TASK_ORDER,
-    exceptions=[is_new_task_order],
+    exception=is_new_task_order,
     message="view new task order form",
 )
 def new(screen, task_order_id=None, portfolio_id=None):
@@ -316,7 +316,7 @@ def new(screen, task_order_id=None, portfolio_id=None):
 )
 @user_can(
     Permissions.CREATE_TASK_ORDER,
-    exceptions=[is_new_task_order],
+    exception=is_new_task_order,
     message="update task order",
 )
 def update(screen, task_order_id=None, portfolio_id=None):

atst/routes/task_orders/signing.py

@@ -29,9 +29,7 @@ def wrap_check_is_ko(user, task_order_id=None, **_kwargs):
 
 @task_orders_bp.route("/task_orders/<task_order_id>/digital_signature", methods=["GET"])
 @user_can(
-    None,
-    exceptions=[wrap_check_is_ko],
-    message="view contracting officer signature page",
+    None, exception=wrap_check_is_ko, message="view contracting officer signature page"
 )
 def signature_requested(task_order_id):
     task_order = find_unsigned_ko_to(task_order_id)
@@ -48,7 +46,7 @@ def signature_requested(task_order_id):
     "/task_orders/<task_order_id>/digital_signature", methods=["POST"]
 )
 @user_can(
-    None, exceptions=[wrap_check_is_ko], message="submit contracting officer signature"
+    None, exception=wrap_check_is_ko, message="submit contracting officer signature"
 )
 def record_signature(task_order_id):
     task_order = find_unsigned_ko_to(task_order_id)