Add INABIAF to 2001/ollinger

If the program is not provided with an arg it will very likely crash or
do something different.

2001/ollinger/README.md

@@ -16,6 +16,10 @@ make
 ./ollinger integer
 ```
 
+### INABIAF - it's not a bug it's a feature! :-)
+
+This program will very likely crash or do something else without an arg.
+
 ## Try:
 
 ```sh