Fix some issues reported by lintian

Fix some issues reported by lintian

• Set upstream metadata fields: Bug-Database, Repository. (upstream-metadata-missing-bug-tracking)

• Remove obsolete field Name from debian/upstream/metadata (already present in machine-readable debian/copyright).

• Update standards version to 4.6.0, no changes needed. (out-of-date-standards-version)

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/libmrss/c699032a-241d-4f74-8ed8-7688b4d7d504.

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/43/59abfd3ad0957c007a23d230a2e8abbc63dff7.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/db/7ecbeb79bc11e5b6a97208888395d5c574780c.debug

No differences were encountered between the control files of package **libmrss0**

Control files of package libmrss0-dbgsym: lines which differ (wdiff format)

• Build-Ids: db7ecbeb79bc11e5b6a97208888395d5c574780c 4359abfd3ad0957c007a23d230a2e8abbc63dff7

No differences were encountered between the control files of package **libmrss0-dev**

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