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.
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index fa5a888..70f3e57 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -7468,7 +7468,7 @@
 	else
 # endif
 	{
-	    EMSG(_(e_nowrtmsg));
+	    no_write_message();
 	    return;
 	}
     }