Admin change email template !!membership_change!! format issue

!!membership_change!! text adds an extra “.” after membership type when adding or removing a membership expiration date.

1. Go to user admin.
2. Add or change user membership level.
3. Add or remove expiration date.
4. See Admin Change email in inbox.
5. Membership change text has additional “.” after the membership type.

E.g. The new level is Concession Membership.. This membership will expire on 23/06/2021.
E.g. The new level is Concession Membership.. This membership does not expire.

Please assist. TIA!