Fix some issues reported by lintian

Fix some issues reported by lintian

• Move source package lintian overrides to debian/source. (package-uses-deprecated-source-override-location)
• Bump debhelper from old 10 to 12. (package-uses-old-debhelper-compat-version)

This merge proposal was created automatically by the Janitor bot.

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

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/python-pbr/7d1db813-2e61-413b-b48b-ed54358f6e39.

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 .changes but not in first

-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/ajax-loader.gif
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/comment-bright.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/comment-close.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/comment.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/down-pressed.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/down.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/up-pressed.png
-rw-r--r--  root/root   /usr/share/doc/python-pbr-doc/html/_static/up.png

No differences were encountered between the control files of package **python-pbr**

No differences were encountered between the control files of package **python-pbr-doc**

No differences were encountered between the control files of package **python3-pbr**

You can also view the diffoscope diff (unfiltered).