Automatically close unclosed contours.

td/telegram/GroupCallManager.cpp

@@ -903,7 +903,7 @@ void GroupCallManager::on_update_group_call_participants(
   }
   auto &pending_updates = group_call_participants->pending_updates_[version];
   if (!pending_updates.empty()) {
-    LOG(ERROR) << "Receive duplicate updateGroupCallParticipants with version " << version << " in "
+    LOG(INFO) << "Receive duplicate updateGroupCallParticipants with version " << version << " in "
               << input_group_call_id;
     sync_group_call_participants(input_group_call_id);
     return;

td/telegram/StickersManager.cpp

@@ -1498,6 +1498,10 @@ vector<td_api::object_ptr<td_api::closedVectorPath>> StickersManager::get_sticke
               make_point(last_end_control_point_x, last_end_control_point_y), make_point(x, y)));
           break;
         }
+        case 'm':
+        case 'M':
+          pos--;
+          // falltrough
         case 'z':
         case 'Z':
           if (x != start_x || y != start_y) {

tdnet/td/net/SslStream.cpp

@@ -472,7 +472,7 @@ class SslStreamImpl {
             return 0;
           }
         }
-        /* fall through */
+        /* fallthrough */
       default:
         LOG(DEBUG) << "SSL_ERROR Default";
         return create_openssl_error(1, "SSL error ");