update docs

docs/40_Usage.md

@@ -64,7 +64,7 @@ This will download the "hello.txt" into the current folder:
 
 ```txt
 ./getfile.sh -u http://localhost:8001 -s myapikey -e test -p example-prj -f hello.txt
--rw-r--r-- 1 axel axel 1152 Sep 15 14:34 hello.txt
+-rw-r--r-- 1 axel axel 12 Sep 15 14:34 hello.txt
 ```
 
 For less params with getfile.sh there is a config: