Apply hints suggested by the [multi-arch hinter](https://wiki.debian.org/MultiArch/Hints)

Apply hints suggested by the multi-arch hinter.

• tclx8.4-doc: Add Multi-Arch: foreign.. This fixes: tclx8.4-doc could be marked Multi-Arch: foreign. (ma-foreign)

Note that in some cases, these multi-arch hints may trigger lintian warnings until the dependencies of the package support multi-arch. This is expected, see https://janitor.debian.net/multiarch-fixes#why-does-lintian-warn for details.

This merge proposal was created by the Janitor bot, and it will automatically rebase or close this proposal as appropriate when the target branch changes. Any comments you leave here will be read by the Janitor's maintainers.

Build and test logs for this branch can be found at https://janitor.debian.net/multiarch-fixes/pkg/tclx8.4/9ba38532-5b86-47d5-9d00-d91f95b421a0.

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/be/214b182505e780f1cb002bdfc77de464bf7344.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/1b/530fc57b9663826993485b2ef1f5d658c22b97.debug

No differences were encountered between the control files of package **tclx8.4**

Control files of package tclx8.4-dbgsym: lines which differ (wdiff format)

• Build-Ids: 1b530fc57b9663826993485b2ef1f5d658c22b97 be214b182505e780f1cb002bdfc77de464bf7344

No differences were encountered between the control files of package **tclx8.4-dev**

Control files of package tclx8.4-doc: lines which differ (wdiff format)

• Multi-Arch: foreign

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