Add a kg_encrypt_inplace() utility function to the krb5 GSS mech, and
use it where we do in-place encryption of checksums in the non-CFX
seal tokens with raw DES enctypes.  Avoids a harmless but incorrect
in-place memcpy().


https://github.com/krb5/krb5/commit/c079477480c839bd983afd082ac7a7ec51e906ca
Commit By: ghudson
Revision: 24485
Changed Files:
U   trunk/src/lib/gssapi/krb5/gssapiP_krb5.h
U   trunk/src/lib/gssapi/krb5/k5seal.c
U   trunk/src/lib/gssapi/krb5/k5sealiov.c
U   trunk/src/lib/gssapi/krb5/k5unseal.c
U   trunk/src/lib/gssapi/krb5/k5unsealiov.c
U   trunk/src/lib/gssapi/krb5/util_crypt.c