pull up r24528 from trunk

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 r24528 | ghudson | 2010-11-22 23:41:08 -0500 (Mon, 22 Nov 2010) | 7 lines

 ticket: 6824
 subject: Export krb5_tkt_creds_get
 target_version: 1.9
 tags: pullup

 krb5_tkt_creds_get was overlooked in the export list; add it.

https://github.com/krb5/krb5/commit/67e404e70a2a6c8492c62c365b25e0e253e0543e
Commit By: tlyu
Revision: 24545
Changed Files:
U   branches/krb5-1-9/src/lib/krb5/libkrb5.exports