Closed issue by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/24013

Description:
### System

* package:  
  * texlive-20200406_2
  * texlive-core-2020.55416_1

### Expected behavior

Running `tlmgr` works.

### Actual behavior

```
$ tlmgr
Can't locate TeXLive/TLConfig.pm in @INC (you may need to install the TeXLive::TLConfig module) (@INC contains: //texmf-dist/scripts/texlive //tlpkg /usr/lib/perl5/site_perl /usr/share/perl5/site_perl /usr/lib/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib/perl5/core_perl /usr/share/perl5/core_perl .) at /bin/tlmgr line 100.
BEGIN failed--compilation aborted at /bin/tlmgr line 100.
```

It seems to not be using an absolute path for its resources, since running it like so works:

```
$ cd /usr/share/texmf-dist/tlpkg
$ tlmgr
tlmgr: no action given; try --help if you need it.
```

### Steps to reproduce the behavior

Shown above.

### Additional info

`pdflatex` works without issue.

Ping @fosslinux