dh-golang 1.47 source package in Ubuntu

Changelog

dh-golang (1.47) unstable; urgency=medium

  [ Shengjing Zhu ]
  * Skip empty pattern when check target lists (Closes: #952173)
    If the PATTERN evaluates to the empty string, the last
    successfully matched regular expression is used instead
    Thanks @lilydjwg

  [ Anthony Fok ]
  * Replace / / with ' ' as pattern in Perl split() calls,
    emulating awk’s behaviour such that leading whitespace and
    consecutive spaces do not become empty strings in the resulting list.
    This was the case with golang-gopkg-gorethink-gorethink.v3 when its
    DH_GOLANG_EXCLUDES created empty string patterns, such that
    "grep { !/$pattern/ } @targets" stripped the list empty and
    caused e.g. "go test" call to fail.  That FTBFS did not happen
    before dh-golang 1.46 as it was hidden by Perl 5’s peculiar feature:
    “If the PATTERN evaluates to the empty string,
    the last successfully matched regular expression is used instead.”
    See https://metacpan.org/pod/perlop#The-empty-pattern and
    https://github.com/Perl/perl5/issues/17577 for more. (Closes: #952173)
  * Warn in case an empty pattern is detected even if split(' ', ...)
    should have prevented it in the first place.  For future-proofing.

 -- Anthony Fok <email address hidden>  Mon, 24 Feb 2020 12:27:16 -0700