New comment by shtayerc on void-packages repository

https://github.com/void-linux/void-packages/issues/22012#issuecomment-629650103

Comment:
`ec` package is already installed.
```
tlmgr: package repository http://ctan.ijs.si/tex-archive/systems/texlive/tlnet (verified)
tlmgr install: package already present: ec
```