tty: ^C while prompted re-displays last message

- attempt to determine if tty_wait_synch() is called during the ending
 dialogs due to an interrupt, and not re-display the previous message
 at the wrong time
- also, "msg_window display anomaly" fix was missing code to still treat ^P
 properly while in a prompt

win/tty/getline.c

@@ -73,7 +73,10 @@ getlin_hook_proc hook;
 		}
 		if(c == '\020') { /* ctrl-P */
 		    if (iflags.prevmsg_window) {
+			int sav = ttyDisplay->inread;
+			ttyDisplay->inread = 0;
 			(void) tty_doprev_message();
+			ttyDisplay->inread = sav;
 			tty_clear_nhwindow(WIN_MESSAGE);
 			cw->maxcol = cw->maxrow;
 			addtopl(query);

win/tty/topl.c

@@ -300,12 +300,16 @@ char def;
 	    q = lowc(readchar());
 	    if (q == '\020') { /* ctrl-P */
 		if (iflags.prevmsg_window) {
+		    int sav = ttyDisplay->inread;
+		    ttyDisplay->inread = 0;
 		    (void) tty_doprev_message();
+		    ttyDisplay->inread = sav;
 		    tty_clear_nhwindow(WIN_MESSAGE);
 		    cw->maxcol = cw->maxrow;
 		    addtopl(prompt);
 		} else {
-		    if(!doprev) (void) tty_doprev_message(); /* need two initially */
+		    if(!doprev)
+			(void) tty_doprev_message(); /* need two initially */
 		    (void) tty_doprev_message();
 		    doprev = 1;
 		}

win/tty/wintty.c

@@ -2218,7 +2218,7 @@ tty_wait_synch()
 	if(ttyDisplay->inmore) {
 	    addtopl("--More--");
 	    (void) fflush(stdout);
-	} else if(ttyDisplay->inread) {
+	} else if(ttyDisplay->inread > program_state.gameover) {
 	    /* this can only happen if we were reading and got interrupted */
 	    ttyDisplay->toplin = 3;
 	    /* do this twice; 1st time gets the Quit? message again */