Explain what to do when conflicts can't be resolved

GitOrigin-RevId: 6ef206a3b9846f1a45b22391dba83652e66b3d0c

updater/src/com/intellij/updater/SwingUpdaterUI.java

@@ -215,6 +215,7 @@ public class SwingUpdaterUI implements UpdaterUI {
       }
       else {
         message += "Some of the conflicts below do not have a solution, so the patch cannot be applied.<br>" +
+                   "Please download this version from the developer Web site and reinstall it from scratch.<br>" +
                    "Press '" + CANCEL_BUTTON_TITLE + "' to exit.</html>";
       }
       JLabel label = new JLabel(message);