Update copyright to 2020

Author: JElchison

format-udf.sh

@@ -265,7 +265,7 @@ while getopts ":b:fp:w:vh" opt; do
  v)
  echo "format-udf $VERSION"
  echo "https://github.com/JElchison/format-udf"
- echo "Copyright (C) 2018 Jonathan Elchison <JElchison@gmail.com>"
+ echo "Copyright (C) 2020 Jonathan Elchison <JElchison@gmail.com>"
  exit 0
  ;;
  h)