Yes, it's a problem. I submitted an item on Connect

https://connect.microsoft.com/SQLServer/feedback/details/398203/sp-rename-doesnt-change-the-text-of-udfs-or-procs-sp-helptext-then-returns-a-script-with-the-old-name

and it was classified as "Won't Fix"

It's something we're going to have to live with.

Regards,

Andy

Andrew Novick

SQL Server MVP

http://www.NovickSoftware.com