Description of problem:
The access logs do not clearly show whether an access has been successful or not. The only difference between a failed and a successful attempt log is the redirect URL.

2017-11-07 04:33:49 6439f4d2 [app] [I] Started POST "/users/login" for 188.165.236.215 at 2017-11-07 04:33:49 -0500
2017-11-07 04:33:49 6439f4d2 [app] [I] Processing by UsersController#login as HTML
2017-11-07 04:33:49 6439f4d2 [app] [I] Parameters: {"utf8"=>"✓", "authenticity_token"=>"JXj1fJaHE/73qHOwTHDXT8AvV3omYP9traB29KWq9HU=", "login"=>

, "commit"=>"Accedi"}
2017-11-07 04:33:49 6439f4d2 [app] [I] Redirected to https://satellite.fcarrus.it/users/login
2017-11-07 04:33:49 6439f4d2 [app] [I] Completed 302 Found in 89ms (ActiveRecord: 50.9ms)
2017-11-07 04:33:49 7538cdef [app] [I] Started GET "/users/login" for 188.165.236.215 at 2017-11-07 04:33:49 -0500
2017-11-07 04:33:49 7538cdef [app] [I] Processing by UsersController#login as HTML
2017-11-07 04:33:49 7538cdef [app] [I] Rendered users/login.html.erb within layouts/login (1.7ms)
2017-11-07 04:33:49 7538cdef [app] [I] Rendered layouts/base.html.erb (1.1ms)
2017-11-07 04:33:49 7538cdef [app] [I] Completed 200 OK in 7ms (Views: 3.8ms | ActiveRecord: 0.5ms)
Version-Release number of selected component (if applicable):

How reproducible:
100%

Steps to Reproduce:
1. Execute a successful login
2. Execute a failed login
3. Compare logs

Actual results:
The only difference is the redirect URL

Expected results:
A line to clearly state whether the login was successful or not.

Additional info: