(ITS#3621) inconsistent slaptest behavior with/without -u (dryrun)

[ando@sys-net.it]

Full_Name: Pierangelo Masarati
Version: HEAD
OS: Linux
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (131.175.154.56)
Submitted by: ando


Slaptest is behaving inconsistently when -u (dryrun is/is not specified) with
respect to database(s) status.  I think this is because some reworking occurred
in backend shutdown/destruction, in fact slaptest runs with be == NULL and this
test was disabling slap_shutdown(); as a consequence, slap_destroy() would find
the databases in an inconsistent state.  Another problem occurs when -u is set. 
I think I've fixed this in HEAD.  Please test.