Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)

• Refer to common license file for CC0-1.0. (copyright-does-not-refer-to-common-license-file)

• Set upstream metadata fields: Bug-Database, Bug-Submit, Contact, Repository, Repository-Browse. (upstream-metadata-file-is-missing, upstream-metadata-missing-bug-tracking, upstream-metadata-missing-repository)

• Fix day-of-week for changelog entry 1.1.2-1. (debian-changelog-has-wrong-day-of-week)

• Update standards version to 4.5.1, no changes needed. (out-of-date-standards-version)

• Avoid explicitly specifying -Wl,--as-needed linker flag. (debian-rules-uses-as-needed-linker-flag)

This merge proposal was created automatically by the Janitor bot. For more information, including instructions on how to disable these merge proposals, see https://janitor.debian.net/lintian-fixes.

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The bot will automatically update the merge proposal to resolve merge conflicts or close the merge proposal when all changes are applied through other means (e.g. cherry-picks). Updates may take several hours to propagate.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/atomix/7aa01f67-7006-4638-abbf-3cd2ce0ef5a6.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/3f/c521daf0e7f1a058027f6bbd2d39ebf5b2cc29.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/6d/e3c7f51646152b9b8337586831ef1c9490226d.debug

No differences were encountered between the control files of package **atomix**

No differences were encountered between the control files of package **atomix-data**

Control files of package atomix-dbgsym: lines which differ (wdiff format)

• Build-Ids: 6de3c7f51646152b9b8337586831ef1c9490226d 3fc521daf0e7f1a058027f6bbd2d39ebf5b2cc29

You can also view the diffoscope diff (unfiltered).