(krb5_read_message): reset out data before return error or success, fixes many Coverity bugs.
(krb5_read_message): reset out data before return error or success,
fixes many Coverity bugs.


git-svn-id: 193148810cf65385f3a195dbc9a8b504846da3a2@16794 ec53bebd-3082-4978-b11e-865c3cabbd6b

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal