Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)

• Update renamed lintian tag names in lintian overrides. (renamed-tag)

• Update standards version to 4.6.1, 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 (out-of-date-standards-version)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/splint/bb7f9bd1-b8a1-46ec-8d48-760793ac731d.

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/dd/0f2c2acabac9392ac64752e9b6293b6d6ff160.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/6a/7423aa8f1fca8b69d3c01b2101ec45fc85a682.debug

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

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

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

• Build-Ids: 6a7423aa8f1fca8b69d3c01b2101ec45fc85a682 dd0f2c2acabac9392ac64752e9b6293b6d6ff160

No differences were encountered between the control files of package **splint-doc-html**

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