Improve 1989/jar.2/try.sh

Now it will cat each file before running jar.2 on it, prompting for both
cat and the command itself. Spaces are added in between commands to help
let things stand out better.

1989/jar.2/try.sh

@@ -19,8 +19,13 @@ fi
 
 for f in $FILES; do 
     if [[ -e "$f" && -r "$f" ]]; then
+	read -r -n 1 -p "Press any key to run: cat $f: "
+	echo 1>&2
+	cat "$f"
+	echo 1>&2
 	read -r -n 1 -p "Press any key to run: ./jar.2 < $f: "
 	echo 1>&2
 	./jar.2 < "$f"
+	echo 1>&2
     fi
 done