Update backlog-set-due-date

Co-authored-by: Martchus <[email protected]>

Author: okurz

Diff for: backlog-set-due-date

@@ -15,7 +15,7 @@ Usage: $0 [OPTIONS]
 This script sets the due date on tickets in Redmine based on
 specified conditions
 
-If you want to run this for testing there are two options
+If you want to run this for testing there are two options:
 1. Run the script without updating the tickets
 dry_run=1 ./backlog-set-due-date