https://bugzilla.wikimedia.org/show_bug.cgi?id=54968

       Web browser: ---
            Bug ID: 54968
           Summary: LdapAuthentication can genere bad DNS request due to
                    not triming leading blanks from servernames
           Product: MediaWiki extensions
           Version: unspecified
          Hardware: All
                OS: Solaris
            Status: UNCONFIRMED
          Severity: normal
          Priority: Unprioritized
         Component: LdapAuthentication
          Assignee: rlan...@gmail.com
          Reporter: pe...@savecore.se
    Classification: Unclassified
   Mobile Platform: ---

The leading " " that currently is generated can cause bad DNS request for
hostname=0, this can easily be fixed by adding an ltrim after the rtrim on line
571

$servers = "";
$tmpservers = $this->getConf( 'ServerNames', $domain );
$tok = strtok( $tmpservers, " " );
while ( $tok ) {
    $servers = $servers . " " . $serverpre . $tok . ":" . $this->getConf(
'Port', $domain );
    $tok = strtok( " " );
}
$servers = rtrim( $servers );
$servers = ltrim( $servers );

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