Minor - fix php warning + add comment

.env.dist

@@ -29,6 +29,7 @@ APP_SECRET=141af65f23c7935a37b504c422f113b0
 
 ###> chamilo ###
 APP_INSTALLED={{APP_INSTALLED}}
+## Encrypt method bcrypt/sha1/md5
 APP_ENCRYPT_METHOD={{APP_ENCRYPT_METHOD}}
 APP_LOCALE=en
 APP_URL_APPEND='{{APP_URL_APPEND}}' ## Example: '/chamilo2'

src/UserBundle/Security/Encoder.php

@@ -72,7 +72,7 @@ class Encoder extends BasePasswordEncoder
                 break;
             case 'sha1':
             case 'md5':
-                $defaultEncoder = new MessageDigestPasswordEncoder($this->method, false, 1);
+                $defaultEncoder = new MessageDigestPasswordEncoder($this->passwordEncrypt, false, 1);
                 break;
         }