CentOS 8 install of EL7 packages produces `tr` errors

Following [advice from @alexmiller-apple](https://forums.foundationdb.org/t/package-download-questions/2037/5?u=wohali), I'm installing the EL7 rpm on CentOS 8 using `--nodeps` to work around the inadvertent python dependency. This results in the following errors:

```
[root@host] # rpm -i --nodeps ./foundationdb*
tr: write error: Broken pipe
tr: write error
tr: write error: Broken pipe
tr: write error
[root@host] # echo $?
0
```

I don't get these on CentOS 7. I don't know if they're an issue or not.

Start with the reported `rpm -i --nodeps ./foundationdb*` command and compare its `tr` output on CentOS 8 and CentOS 7. Determine whether the broken-pipe messages affect installation or runtime behavior, using the reported exit status of 0 as a starting point; done means the impact and required package-installation change are established.

Written by the indexing model from the issue text.