MDL-35130 shibboleth: remove hard-coded string

auth/shibboleth/index_form.html

@@ -40,8 +40,7 @@ <h2><?php
             </form>
             <p>
             <?php
-                print_string("auth_shibboleth_contact_administrator", "auth_shibboleth");
-                echo '<a href="mailto:'.get_admin()->email.'"> Moodle Administrator</a>.';
+                print_string("auth_shib_contact_administrator", "auth_shibboleth", get_admin()->email);
             ?>
             </p>
           </div>

auth/shibboleth/lang/en/auth_shibboleth.php

@@ -25,6 +25,7 @@
 
 $string['auth_shib_auth_method'] = 'Authentication method name';
 $string['auth_shib_auth_method_description'] = 'Provide a name for the Shibboleth authentication method that is familiar to your users. This could be the name of your Shibboleth federation, e.g. <tt>SWITCHaai Login</tt> or <tt>InCommon Login</tt> or similar.';
+$string['auth_shib_contact_administrator'] = 'In case you are not associated with the given organizations and you need access to a course on this server, please contact the <a href="mailto:{$a}">Moodle Administrator</a>.';
 $string['auth_shibboleth_contact_administrator'] = 'In case you are not associated with the given organizations and you need access to a course on this server, please contact the';
 $string['auth_shibbolethdescription'] = 'Using this method users are created and authenticated using <a href="http://shibboleth.internet2.edu/">Shibboleth</a>.<br />Be sure to read the <a href="../auth/shibboleth/README.txt">README</a> for Shibboleth on how to set up your Moodle with Shibboleth';
 $string['auth_shibboleth_errormsg'] = 'Please select the organization you are member of!';