fix(protocol/http): response mode - extra time option with lwp backend (#2848)

apps/protocols/http/mode/response.pm

@@ -184,6 +184,10 @@ sub manage_selection {
 
     if (defined($self->{option_results}->{extra_stats})) {
         my $times = $self->{http}->get_times();
+        if (!defined($times)) {
+            $self->{output}->add_option_msg(short_msg => 'Unsupported --extra-stats option for current http backend. Please try with curl backend.');
+            $self->{output}->option_exit();
+        }
         $self->{global} = { %$times, %{$self->{global}} };
     }
 }

centreon/plugins/backend/http/lwp.pm

@@ -348,7 +348,7 @@ sub get_certificate {
     return ('socket', $con);
 }
 
-sub get_time {
+sub get_times {
     my ($self, %options) = @_;
 
     return undef;