Update README.md

2018-12-26 20:15:05 -05:00 · 2018-12-26 20:15:05 -05:00 · b8c363ec7e
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@ -1229,7 +1229,7 @@ who -b

 ###### Detect a user sudo-su'd into the current shell

-```
+```bash
 [[ $(who -m | awk '{ print $1 }') == $(whoami) ]] || echo "You are su-ed to $(whoami)"
 ```