Fixed the extra : in jokes file.

modules/joke/joke.sh

@@ -7,7 +7,7 @@ lastLine="$(grep -n '^exit 0' $0)"
 lastLine=${lastLine%%:*}
 lastLine=$((lastLine + 1))
 # display a line from the end of the file after the script
-msg "$2" "$(tail +${lastLine} "$0" | sed '/^$/d' | shuf -n1)":
+msg "$2" "$(tail +${lastLine} "$0" | sed '/^$/d' | shuf -n1)"
 
 # Put jokes after the exit, one per line.
 exit 0