Minor fix in 1998/chaos - restore terminal at exit

The problem with not calling 'endwin()' is that echo will be disabled
which is a problem for the user if they don't know to type stty echo or
reset or stty sane.

1998/chaos/README.md

@@ -18,6 +18,9 @@ Or you can build this entry without the `halfdelay()` call by:
 
 	make chaos_nohalf
 
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) added a call to
+`endwin()` to restore terminal sanity (echo etc.) when exiting the program.
+Thank you Cody for your assistance!
 
 ## To run:
 

1998/chaos/chaos.c

@@ -48,7 +48,7 @@ A main(A N,char ** Y) {
 	_('u',-,2,0,1)
 	_('i',-,1,0,2)
 	G += M=='a'?-.1:M=='z'?.1:0;
-	if(M=='q') { printf("%.9s\n",P); exit(0); }
+	if(M=='q') { printf("%.9s\n",P); endwin(); exit(0); }
 		
 	memset(Q,0,3792); 
 	erase();