apply suggested change

lib/ansible/modules/user.py

@@ -74,6 +74,7 @@ options:
               Since Ansible 2.5, the default shell for non-system users on macOS is V(/bin/bash).
             - On other operating systems, the default shell is determined by the underlying tool
               invoked by this module. See Notes for a per platform list of invoked tools.
+            - From Ansible 2.18, the type is changed to I(path) from I(str).
         type: path
     home:
         description:

test/integration/targets/user/tasks/test_create_user.yml

@@ -83,6 +83,7 @@
   user:
     name: bob
     shell: ~/custom_shell
+  register: user_create_result
 
 - name: Create a new user with custom shell to test ~ expansion second time should show ok not changed
   user:
@@ -90,8 +91,8 @@
     shell: ~/custom_shell
   register: user_creation_result
 
-- name: Assert that the user was not changed on subsequent runs
+- name: Assert that the user with a tilde in the shell path is created
   assert:
     that:
       - user_creation_result is not changed
-    fail_msg: "Failure: User state was changed, We expect it to be same."
+      - user_create_result is changed