In walk_rtree's rtree_hier_tree, don't leak the result of
rtree_hier_realms.  In rtree_hier_realms, avoid freeing one too many
krb5_data contents on allocation failure, and use the recommend
pattern to ensure well-defined output parameter values.


https://github.com/krb5/krb5/commit/4738573c9543f7d727c24a7eab4b2d29aea2c0fe
Commit By: ghudson
Revision: 21912
Changed Files:
U   trunk/src/lib/krb5/krb/walk_rtree.c