pull up r23698 from trunk

 ------------------------------------------------------------------------
 r23698 | tlyu | 2010-02-05 15:52:42 -0500 (Fri, 05 Feb 2010) | 8 lines

 ticket: 6601
 tags: pullup
 target_version: 1.8

 Apply patch from Arlene Berry to handle the case where a mechanism
 implements set_cred_option but does not implement the requested
 option.

https://github.com/krb5/krb5/commit/cc480060c7b31c33e69ba10d0a842b58c796b7db
Commit By: tlyu
Revision: 23709
Changed Files:
U   branches/krb5-1-8/src/lib/gssapi/mechglue/g_set_cred_option.c