bug#28756: Substitute download progress bar doesn't reach 100%

[宋文武]

address@hidden (Ludovic Courtès) writes:

> Hello,
>
> Leo Famulari <address@hidden> skribis:
>
>> I just upgraded to the latest Guix and, while downloading substitutes, I
>> noticed the progress bar seems to never reach 100%, as shown below. I'm
>> not sure if this started recently or not.
>>
>> Downloading 
>> https://mirror.hydra.gnu.org/guix/nar/gzip/drm4pj1k5mkb5784i0rkqb0bg2z8lmyw-libabw-0.1.1...
>>  libabw-0.1.1  346KiB
>
> Indeed, I’ve noticed too, and I think it relates to the new progress
> reporters.  宋文武, do you experience this as well?  Thoughts?
>

Yes, thanks for the report, commit abaee53c8 should fix it.

I thought close the 'input' port in the 'progress-substitution' will
close the 'progress' port too, but it's not true.