The Windows _vsnprintf does not terminate its output buffer in the
overflow case.  Make sure we do that in the wrapper.  Reported by
Chris Hecker.

(Not an issue for KfW 3.2 since we weren't using snprintf in 1.6.x
except in Unix-specific code.)

https://github.com/krb5/krb5/commit/ddea50b5a7e04a28e2a15b2989125ccc4532ccf6
Commit By: ghudson
Revision: 25367
Changed Files:
U   trunk/src/include/k5-platform.h