Fix some issues reported by lintian

Fix some issues reported by lintian

• Set field Upstream-Name in debian/copyright.

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

• 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.

You can follow up to this merge proposal as you normally would.

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/gphoto2/b0e9dccd-7738-41b1-b7e6-8f91ffa71954.

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/71/d39b90ef520d4ad8dcc331a41f4653b5a7c372.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/80/9d35b674de4730fdff508a8254083c8be4e87b.debug

No differences were encountered between the control files of package **gphoto2**

Control files of package gphoto2-dbgsym: lines which differ (wdiff format)

• Build-Ids: 809d35b674de4730fdff508a8254083c8be4e87b 71d39b90ef520d4ad8dcc331a41f4653b5a7c372

You can also view the diffoscope diff (unfiltered).