better logging of needed angeltypes for shifts and rooms

includes/pages/admin_rooms.php

@@ -118,7 +118,9 @@ function admin_rooms()
                         $angeltype = AngelType($angeltype_id);
                         if ($angeltype != null) {
                             NeededAngelType_add(null, $angeltype_id, $room_id, $angeltype_count);
-                            $needed_angeltype_info[] = $angeltype['name'] . ': ' . $angeltype_count;
+                            if($angeltype_count > 0) {
+                                $needed_angeltype_info[] = $angeltype['name'] . ': ' . $angeltype_count;
+                            }
                         }
                     }
 

includes/pages/admin_shifts.php

@@ -338,7 +338,9 @@ function admin_shifts()
                             $count
                         ]
                     );
-                    $needed_angel_types_info[] = $angel_type_source['name'] . ': ' . $count;
+                    if($count > 0) {
+                        $needed_angel_types_info[] = $angel_type_source['name'] . ': ' . $count;
+                    }
                 }
             }
             engelsystem_log('Shift needs following angel types: ' . join(', ', $needed_angel_types_info));