Patch: Wrong return types for ber_scanf and ber_flatten (ITS#1701)

[h.b.furuseth@usit.uio.no]

Full_Name: Hallvard B. Furuseth
Version: 2.1.0alpha
OS: Linux
URL: http://folk.uio.no/hbf/OpenLDAP/ber-returntype.txt
Submission from: (NULL) (158.36.148.34)


Fix code which assigns the return value of ber_scanf to an int and then
usually tests if that is LBER_ERROR, and which checks ber_flatten() ==
LBER_ERROR instead of -1.

The request.c patch patches rc=ber_printf instead because most uses
of 'rc' is with ber_scanf, so it's simpler to change the type of 'rc'
and then change the uses of 'rc' which are not with ber_scanf.