Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)

• Set field Upstream-Contact in debian/copyright.

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

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

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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Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/theli/ae4371c3-c619-4a8c-ba54-1b12e7718073.

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/d8/5d909053231e5b5fcbe57ff9a028b8887a1ac2.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/bf/dbe3cd3bb5ac98c5d96f470e615531632dbe41.debug

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

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

• Build-Ids: bfdbe3cd3bb5ac98c5d96f470e615531632dbe41 d85d909053231e5b5fcbe57ff9a028b8887a1ac2

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