MDL-26061 Revised new string before integration.

mnet/service/enrol/lang/en/mnetservice_enrol.php

@@ -33,7 +33,7 @@
 $string['hostname'] = 'Host name';
 $string['hosturl'] = 'Remote host URL';
 $string['nopublishers'] = 'No remote peers available.';
-$string['noroamingusers'] = 'Users need capability \'{$a}\' to be enrolled to remote courses. No users with such capability were found. Click the continue button to assign the required capability to some roles at your site.';
+$string['noroamingusers'] = 'Users require the capability \'{$a}\' in the system context to be enrolled to remote courses, however there are currently no users with this capability. Click the continue button to assign the required capability to one or more roles on your site.';
 $string['otherenrolledusers'] = 'Other enrolled users';
 $string['pluginname'] = 'Remote enrolment service';
 $string['refetch'] = 'Re-fetch up to date state from remote hosts';