Closes: #998273

* Build-Depends: Drop versioned constraint on zlib1g-dev.
* gem-doc: Drop versioned constraint on gem in Replaces.
* gem-doc: Drop versioned constraint on gem in Breaks.

Changes-By: deb-scrub-obsolete

we are using dh>10

no changes required

Gbp-Dch: ignore

Gbp-Dch: ignore

it's not really used anyhow.
add a short snippet to d/scripts/alternatives.sh to generate the new
alternatives-declarations once dh-14 is stable.

Gbp-Dch: ignore

Closes: #941053

no changes required

Closes: #963417

This reverts commit e9c58ebc.

Gbp-Dch: ignore

Closes: #941053

Fixes: lintian: debian-changelog-has-wrong-day-of-week
See-also: https://lintian.debian.org/tags/debian-changelog-has-wrong-day-of-week.html

Fixes: lintian: upstream-metadata-file-is-missing
See-also: https://lintian.debian.org/tags/upstream-metadata-file-is-missing.html