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/README.md

@@ -22,8 +22,6 @@ NOTE: this entry will likely segfault on invalid input.
 ```sh
 ./try.sh
 
-cat chocolate_cake.lisp ; ./jar.2 < chocolate_cake.lisp
-
 ./try.sh chocolate_cake.lisp
 
 ./try.sh try.txt

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