[krbdev.mit.edu #6698] SVN Commit

[Tom Yu via RT]

Adapted patch from Jason Rogers.  It wasn't complete, so this commit
fixes the other instances of the 64-bit problem.

Also fix krb5_deltat_to_str(), which would previously always return an
empty string.

http://src.mit.edu/fisheye/changelog/krb5/?cs=23928
Commit By: tlyu
Revision: 23928
Changed Files:
U   trunk/src/lib/krb5/krb/str_conv.c
U   trunk/src/slave/kproplog.c