psrp - Added proper reconnection variable name (#59369)

changelogs/fragments/psrp-reconnection.yaml

@@ -0,0 +1,2 @@
+minor_changes:
+- psrp - Added the ``ansible_psrp_reconnection_backoff`` variable to control the reconnection backoff setting - https://github.com/ansible/ansible/issues/58714

lib/ansible/plugins/connection/psrp.py

@@ -118,8 +118,11 @@ options:
     - The backoff time to use in between reconnection attempts.
       (First sleeps X, then sleeps 2*X, then sleeps 4*X, ...)
     - This is measured in seconds.
+    - The C(ansible_psrp_reconnection_backoff) variable was added in Ansible
+      2.9.
     vars:
     - name: ansible_psrp_connection_backoff
+    - name: ansible_psrp_reconnection_backoff
     default: 2
     version_added: '2.8'
   message_encryption: