Re: (ITS#6324) slapd -d ? emits incorrect value for LDAP_DEBUG_ANY on x86_64

[h.b.furuseth@usit.uio.no]

That fix caused a lot of overflow warnings about LDAP_DEBUG_ANY.

I've updated ldap/include/ldap_log.h, ldap/servers/slapd/bconfig.c
with an alternate fix.  (The main.c fix stays.)

While I was at it, I handled output of ANY as -1 specially, since
that is a common input value but other negative numbers are not.

-- 
Hallvard