malloc hang inside krb5_sendto_kdc

[Jeffrey Altman]

I should mention that the krb5_locate_kdc() function is one that has 
undergone a major re-write between 1.2.7 and 1.3.1.   Any findings
that the error is in krb5_locate_kdc() can only be responded to with
a request that you upgrade to the current release of the distribution.

Jeffrey Altman