code: @Deprecated
      public static String chomp(final String str, final String separator) {
          return removeEnd(str,separator);
      }
docs: <p>Removes {@code separator} from the end of
  {@code str} if it's there, otherwise leave it alone.</p>
  
  <p>NOTE: This method changed in version 2.0.
  It now more closely matches Perl chomp.
  For the previous behavior, use {@link #substringBeforeLast(String, String)}.
  This method uses {@link String#endsWith(String)}.</p>
  
  <pre>
  StringUtils.chomp(null, *)         = null
  StringUtils.chomp("", *)           = ""
  StringUtils.chomp("foobar", "bar") = "foo"
  StringUtils.chomp("foobar", "baz") = "foobar"
  StringUtils.chomp("foo", "foo")    = ""
  StringUtils.chomp("foo ", "foo")   = "foo "
  StringUtils.chomp(" foo", "foo")   = " "
  StringUtils.chomp("foo", "foooo")  = "foo"
  StringUtils.chomp("foo", "")       = "foo"
  StringUtils.chomp("foo", null)     = "foo"
  </pre>
  
  @param str  the String to chomp from, may be null
  @param separator  separator String, may be null
  @return String without trailing separator, {@code null} if null String input
  @deprecated This feature will be removed in Lang 4.0, use {@link StringUtils#removeEnd(String, String)} instead