[bcg] Casting arguments to toupper() and tolower() explicitly to unsigned char as per RT#40865.
[bcg] Casting arguments to toupper() and tolower() explicitly to
unsigned char as per RT#40865.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@20089 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot