Add a minimal change to prevent NULL deference in ee(1).

To repeat the problem, one can press "Ctrl+C" and then enter "0".

Submitted by:	Alexander Best <alexbestms wwu de>

contrib/ee/ee.c

@@ -1989,7 +1989,7 @@ char *cmd_str;
 	int number;
 	int i;
 	char *ptr;
-	char *direction = NULL;
+	char *direction = "d";
 	struct text *t_line;
 
 	ptr = cmd_str;