Test bogus KDC-REQs

Send encodings that are invalid KDC-REQs, but pass krb5_is_as_req()
and krb5_is_tgs_req(), to make sure that the KDC recovers correctly
from failures in decode_krb5_as_req() and decode_krb5_tgs_req().  Also
send an encoding that isn't a valid KDC-REQ.

https://github.com/krb5/krb5/commit/dae7693f8bf970d89d4c697f3d66a7d458281b93
Author: Tom Yu <tlyu@mit.edu>
Commit: dae7693f8bf970d89d4c697f3d66a7d458281b93
Branch: master
 src/tests/Makefile.in        |    1 +
 src/tests/t_bogus_kdc_req.py |   44 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 0 deletions(-)