Update standard-file-acl.md (output of ls)

docs.it4i/storage/standard-file-acl.md

@@ -75,21 +75,8 @@ other::r--
 You will notice that there is an ACL for a given file because it will exhibit `+`  after its Unix permissions in the output of `ls -l`.
 
 ```code
-$ ls -l /dev/audio
-crw-rw----+ 1 root audio 14, 4 nov.   9 12:49 /dev/audio
-```
-
-```code
-$ getfacl /dev/audio
-getfacl: Removing leading '/' from absolute path names
-# file: dev/audio
-# owner: root
-# group: audio
-user::rw-
-user:solstice:rw-
-group::rw-
-mask::rw-
-other::---
+$ ls -l testfile
+crw-rw----+ 1 someone someone 14, 4 nov.   9 12:49 testfile
 ```
 
 ## Modify ACL