Bug#674640: heimdal-clients: kinit doesn't handle expired credentials

[Sergio Gelato]

Control: notfound -1 1.7~git20160703+dfsg-1
Control: tag -1 +fixed-upstream

Appears (empirically) to have been fixed, probably by upstream commit
a84b57274796027776828ad952628491846aa86c dated Fri Aug 22 20:19:36 2014 -0700.