From e40ea418f41e94857b0f5a3e00cb50e863bf17c9 Mon Sep 17 00:00:00 2001
From: "[Peter Burnett]" <[peterburnett@catalyst-au.net]>
Date: Tue, 30 Jul 2019 14:49:42 +1000
Subject: [PATCH] MDL-66280 core: Added checks for empty password minimum
 length

---
 lib/weblib.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index 73fbcf94a2a..406b6b25750 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -3615,7 +3615,9 @@ function print_password_policy() {
     $message = '';
     if (!empty($CFG->passwordpolicy)) {
         $messages = array();
-        $messages[] = get_string('informminpasswordlength', 'auth', $CFG->minpasswordlength);
+        if (!empty($CFG->minpasswordlength)) {
+            $messages[] = get_string('informminpasswordlength', 'auth', $CFG->minpasswordlength);
+        }
         if (!empty($CFG->minpassworddigits)) {
             $messages[] = get_string('informminpassworddigits', 'auth', $CFG->minpassworddigits);
         }
@@ -3630,7 +3632,10 @@ function print_password_policy() {
         }
 
         $messages = join(', ', $messages); // This is ugly but we do not have anything better yet...
-        $message = get_string('informpasswordpolicy', 'auth', $messages);
+        // Check if messages is empty before outputting any text.
+        if ($messages != '') {
+            $message = get_string('informpasswordpolicy', 'auth', $messages);
+        }
     }
     return $message;
 }
-- 
2.17.1