Add missing elements option to type: list that did not specify (ans…

…ible-collections#1116)

Add missing `elements` option to type: list that did not specify

SUMMARY
Fixes ansible-collections#1114
ISSUE TYPE

Docs Pull Request

COMPONENT NAME

cloudfront_distribution
ecs_taskdefinition
elb_application_lb
rds_option_group

Reviewed-by: Alina Buzachis <None>
Reviewed-by: Jill R <None>

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections@c1d47dd

plugins/modules/rds_option_group.py

@@ -70,6 +70,7 @@
             description: The option settings to include in an option group.
             required: false
             type: list
+            elements: dict
             suboptions:
                 name:
                     description: The name of the option that has settings that you can set.
@@ -111,10 +112,12 @@
             description: A list of C(DBSecurityGroupMembership) name strings used for this option.
             required: false
             type: list
+            elements: str
         vpc_security_group_memberships:
             description: A list of C(VpcSecurityGroupMembership) name strings used for this option.
             required: false
             type: list
+            elements: str
   tags:
     description:
       - A dictionary of key value pairs to assign the option group.