pull up r22168 from trunk

pull up r22168 from trunk

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 r22168 | hartmans | 2009-04-03 01:36:25 -0400 (Fri, 03 Apr 2009) | 8 lines
 Changed paths:
    M /trunk/src/kdc/kdc_authdata.c

 ticket: 6438
 Subject: Handle authdata encrypted in subkey
 target_version: 1.7
 tags: pullup

 RFC 4120 requires that if a subkey is present in the TGS request that
 authorization data be encrypted in the subkey.  Our KDC did not handle
 this correctly.

ticket: 6438
version_fixed: 1.7

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-7@22244 dc483132-0cff-0310-8789-dd5450dbe970