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_cmds.c b/src/ex_cmds.c
index 61c85a9..8b21b81 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -3572,7 +3572,7 @@
 	{
 	    if (other)
 		--no_wait_return;
-	    EMSG(_(e_nowrtmsg));
+	    no_write_message();
 	    retval = GETFILE_NOT_WRITTEN;	/* file has been changed */
 	    goto theend;
 	}