More fixes on reading single valued attr which are mapped to Zimbra

zmldapsync/zmldapsync.pl

@@ -295,8 +295,7 @@ DOMAIN: foreach my $domain ( keys $conf->{domains} ) {
 
   log_verbose( "Comparing the accounts" );
 
-  my $single = map { $conf->{domains}->{$domain}->{users}->{attr_map}->{$_} }
-               keys $conf->{domains}->{$domain}->{users}->{attr_map};
+  my @single = keys $conf->{domains}->{$domain}->{users}->{attr_map};
   push @single, $conf->{domains}->{$domain}->{users}->{mail_attr};
   my $ext_users = ldap2hashref(
     $ext_user_search,
@@ -502,8 +501,7 @@ DOMAIN: foreach my $domain ( keys $conf->{domains} ) {
 	         " distribution list(s) in Zimbra" );
     log_verbose( "Comparing groups with distribution lists" );
 
-    my @single = map { $conf->{domains}->{$domain}->{groups}->{attr_map}->{$_} }
-            keys $conf->{domains}->{$domain}->{groups}->{attr_map};
+    my @single = keys $conf->{domains}->{$domain}->{groups}->{attr_map};
     push @single, $conf->{domains}->{$domain}->{groups}->{mail_attr};
 
     my $ext_groups = ldap2hashref(