In mod-principal tests for clearing the principal's policy, instead of
just testing to see if the wrong string is output and timing out
looking for it, check also for the new expected value.  Cuts test
suite run time by about two minutes for each pass (client vs server).

https://github.com/krb5/krb5/commit/5cd473f71968b3fef60bddc0a89b2cae70b1bdc3
Commit By: raeburn
Revision: 21866
Changed Files:
U   trunk/src/lib/kadm5/unit-test/api.0/mod-principal.exp
U   trunk/src/lib/kadm5/unit-test/api.2/mod-principal.exp