Log Message:
Update to 1.46

Upstream changes:
1.46  2019-09-30 15:15:00 MANWAR
      - Updated SYNOPSIS code with/without 'use utf8;', thanks Mike West.

1.45  2019-09-29 10:10:00 MANWAR
      - Moved author test scripts to xt/ subfolder.

1.44  2019-09-28 02:30:00 MANWAR
      - Fixed typo in the pod w.r.t method string_underline().