Log Message:
Update to 1.15

Upstream changes:
1.15 28 February 2022

  Fix RT#141577: Add missing test file to package so that tests don't fail.

1.14 27 February 2022

  Fix `make test` so it actually fails if there's a test failure.

  Fix RT#20388: Support whitespace after :include: in Sendmail format.

  Fix Sendmail format so it no longer ignores the last alias in the file if it
  ends with a continuation line and there aren't any blank lines or comments
  after it.

  Fix RT#19419: Don't mask INC in _include_file.

1.13 26 February 2022

  New maintainer: Jonathan Kamens <jik@kamens.us>

  Fix syntax error under recent versions of Perl, i.e., make the module work
  again.