Comment # 1 on bug 1219132 from Jiri Slaby

This was deliberately changed by:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f833c82cdab7b4049bcfe88311d35fa5f24e422

to return an empty string in case EAS is not supported. See the commit log.

So the test needs to be tuned.