fixed broken default config options (FS#2789)

lib/plugins/authldap/conf/default.php

@@ -16,4 +16,4 @@ $conf['bindpw']      = '';
 $conf['userscope']  = 'sub';
 $conf['groupscope'] = 'sub';
 $conf['groupkey']   = 'cn';
-$conf['debug']      = array('onoff');
\ No newline at end of file
+$conf['debug']      = 0;
\ No newline at end of file

lib/plugins/authmysql/conf/default.php

@@ -7,7 +7,7 @@ $conf['password']         = '';
 $conf['database']         = '';
 $conf['debug']            = 0;
 $conf['forwardClearPass'] = 0;
-$conf['TablesToLock']     = '';
+$conf['TablesToLock']     = array();
 $conf['checkPass']        = '';
 $conf['getUserInfo']      = '';
 $conf['getGroups']        = '';