Smbd reports a needless warning message for all accounts that do not have a 
password history (many accounts are new and do not have one!) - this is 
flooding the log files at loglevel 1.  

Should we up the value of the loglevel at which this warning is published?

[2008/07/22 16:46:46,  0] passdb/pdb_ldap.c:init_sam_from_ldap(950)
  init_sam_from_ldap: Failed to get password history for user rdumbell

Note: Accounts that have a password history do not generate this warning.

Proposed patch:
--- pdb_ldap.c  2008-07-23 11:15:48.000000000 -0500
+++ pdb_ldap.c.orig     2008-07-23 11:15:30.000000000 -0500
@@ -946,7 +946,7 @@
                                }
                        }
                        if (hex_failed) {
-                               DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
+                               DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
                                        username));
                                memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
                        }