Log Message:
p5-Spreadsheet-ReadSXC: update to 0.24.

0.24  2019-10-08
    - Fix parsing the text of cells that only contain "0"
      These were returned as undef, instead of 0 unless the StandardCurrency
      option was used.
    - Fix parsing multiple sheets. If the first cell of the new table was empty,
      the last defined value of the old table was used instead, if the
      real (instead of formatted) values were used.

0.23  2019-10-03
    - Add a test and fix for files with text in annotations - these caused
      a crash

0.22  2019-10-03
    - Lower Perl version requirement back to 5.8
      There is no current reason to require more.
    - API Change:
      Formatting or read errors in the compressed input or the XML are now
      fatal errors. Before, they returned the half-parsed data structure.
    - read_sxc() and read_xml_file can now also return a fatal error when the
      file is not found or not readable instead of returning undef. Pass a true
      value to the the StrictError option.
    - Bugfix/behaviour change: Cells with leading/trailing newlines now
      return those leading/trailing newlines in their values

0.21  2019-10-02
    - Add 'StandardCurrency' option to get at unformatted number values
    - Support unformatted values for ODS files
    - New maintainer Max Maischein (corion@corion.net)