fixed description of configprotectusernames

lang/en_utf8/admin.php

@@ -141,7 +141,7 @@
 $string['configpathtoclam'] = 'Path to clam AV.  Probably something like /usr/bin/clamscan or /usr/bin/clamdscan. You need this in order for clam AV to run.';
 $string['configpathtodu'] = 'Path to du. Probably something like /usr/bin/du. If you enter this, pages that display directory contents will run much faster for directories with a lot of files.';
 $string['configperfdebug'] = 'If you turn this on, performance info will be printed in the footer of the standard theme';
-$string['configprotectusernames'] = 'By default forget_password.php does not display any hints that would allow guessing of usernames or passwords.';
+$string['configprotectusernames'] = 'By default forget_password.php does not display any hints that would allow guessing of usernames or email addresses.';
 $string['configproxyhost'] = 'If this <b>server</b> needs to use a proxy computer (eg a firewall) to access the Internet, then provide the proxy hostname and port here.  Otherwise leave it blank.';
 $string['configquarantinedir'] = 'If you want clam AV to move infected files to a quarantine directory, enter it here. It must be writable by the webserver.  If you leave this blank, or if you enter a directory that doesn\'t exit or isn\'t writable, infected files will be deleted.  Do not include a trailing slash.';
 $string['configrequestedteachername'] = 'Word for teacher used in requested courses';