pull up r21909 from trunk

pull up r21909 from trunk

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 r21909 | ghudson | 2009-02-06 13:40:04 -0500 (Fri, 06 Feb 2009) | 9 lines
 Changed paths:
    M /trunk/src/lib/krb5/krb/walk_rtree.c

 ticket: 6375
 subject: Fix error handling in krb5_walk_realm_tree
 tags: pullup
 target_version: 1.7

 rtree_hier_realms was forgetting to assign the return value of
 krb5int_copy_data_contents to retval, which would cause a failure to
 notice out-of-memory conditions.

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ticket: 6375
version_fixed: 1.7
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-7@22030 dc483132-0cff-0310-8789-dd5450dbe970