Inconsistent error message in bt_page_items_bytea().

Hi All,

All the pageinspect functions dealing with raw page has the error
message as "must be superuser to use raw page function" however,
that's not true for bt_page_items_bytea() which has  "must be
superuser to use pageinspect functions". This seems to me like a copy
paste error which got transferred from bt_page_items (the function
that doesn't deal with raw page).

Attached is the patch with the correct error message.

-- 
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com