r8025: *how* can this code have been around so long and

r8025: *how* can this code have been around so long and
nver normalized the string used for printer and
sec_desc key lookups ?????

normalized sharename to lower case before storing/fetching
from tdb.

Need to look at drivers and forms tdb as well (perhaps).
(This used to be commit 4aec5dce5c2d0b5c686123a624b58097be9d911a)