vim-patch:8.0.0953: get "no write since last change" error in terminal window

Problem:    Get "no write since last change" error in terminal window.
Solution:   Use another message when closing a terminal window. Make ":quit!"
            also end the job.
f5be7cd016

src/nvim/ex_docmd.c

@@ -6216,7 +6216,7 @@ ex_win_close(
       }
       need_hide = false;
     } else {
-      EMSG(_(e_nowrtmsg));
+      no_write_message();
       return;
     }
   }