Fix memory leak in old gssrpc authentication

auth_gssapi_create(), which is now only used to connect to ancient
servers, can leak memory on error or when multiple GSSAPI_INIT calls
are required.  Ensure that call_res is freed along all exit paths and
before each repeat clnt_call() invocation.

https://github.com/krb5/krb5/commit/9fa91a67e55c265a655f4276ae6ee1b310537e24
Author: Greg Hudson <ghudson@mit.edu>
Commit: 9fa91a67e55c265a655f4276ae6ee1b310537e24
Branch: master
 src/lib/rpc/auth_gssapi.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)