Add test for kinit -C WRONG_REALM response

(cherry picked from commit c0778ab2252ece4c3510788d9b72f7f5e3bb05dd)

https://github.com/krb5/krb5/commit/3e3a1a7d7d2a0ddb0866f21d12ebcc9063a6221d
Author: Greg Hudson <ghudson@mit.edu>
Committer: Tom Yu <tlyu@mit.edu>
Commit: 3e3a1a7d7d2a0ddb0866f21d12ebcc9063a6221d
Branch: krb5-1.13
 src/tests/t_general.py |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)