[Samba] ldapcmp finds differences of "DC" vs "dc"???

[Adam Tauno Williams]

Attempting to debug issues with replication I ldapcmd finds  
differences with the case of the "DC" attribute?

Is this normal?

LARKIN28 is Samba4 4.5.4, while WINDC1 is Windows 2008R2.

[root at larkin28 samba]# samba-tool ldapcmp ldap://larkin28.micore.us  
ldap://windc1.micore.us -Uadministrator dnsdomain
Password for [BACKBONE\administrator]:

* Comparing [DNSDOMAIN] context...

* Objects to be compared: 859

Comparing:
'DC=Chris_WIN7_VM,DC=micore.us,CN=MicrosoftDNS,DC=DomainDnsZones,DC=micore,DC=us'  
[ldap://larkin28.micore.us]
'DC=Chris_WIN7_VM,DC=micore.us,CN=MicrosoftDNS,DC=DomainDnsZones,DC=micore,DC=us'  
[ldap://windc1.micore.us]
     Attributes found only in ldap://larkin28.micore.us:
         DC
     Attributes found only in ldap://windc1.micore.us:
         dc
     FAILED

Comparing:
'DC=PC03050,DC=micore.us,CN=MicrosoftDNS,DC=DomainDnsZones,DC=micore,DC=us'  
[ldap://larkin28.micore.us]
'DC=PC03050,DC=micore.us,CN=MicrosoftDNS,DC=DomainDnsZones,DC=micore,DC=us'  
[ldap://windc1.micore.us]
     Attributes found only in ldap://larkin28.micore.us:
         DC
     Attributes found only in ldap://windc1.micore.us:
         dc
     FAILED

...

Comparing:
'DC=ForestDnsZones,DC=micore,DC=us' [ldap://larkin28.micore.us]
'DC=ForestDnsZones,DC=micore,DC=us' [ldap://windc1.micore.us]
     Difference in attribute values:
         instanceType =>
['13']
['29']
     FAILED

* Result for [DNSFOREST]: FAILURE