[krbdev.mit.edu #2885] krb5 1-4 introduced memory leak in krb5_get_credentials

[Ezra Peisach via RT]

tests/hammer/kdc5_hammer leaks memory with the 1.4 libraries.
If I use the same source code against the 1.3 libraries - there isn't a 
leak. (leak detected with valgrind) 

The leak is below the krb5_get_credentials call... And the memory 
allocated is a read credential... I suspect that a pointer is
being smashed somewhere...

I will try to track it down today...

Ezra