input: Write a python function to sort a list of strings in lexicographic order.
  assert lexicographic_sort(["abcd", "def", "fh", "ac", "a"]) == ["a", "ac", "def", "fh", "abcd"]
  assert lexicographic_sort(["banana", "apple", "cherry", "date"]) == ["apple", "banana", "cherry", "date"]
  assert lexicographic_sort(["zebra", "dog", "cat", "apple"]) == ["apple", "cat", "dog", "zebra"]
output: def lexicographic_sort(lst):
      return sorted(lst)