[Toybox] [PATCH] tar: add -I (--use-compress-program) support.

[Rob Landley]

On 8/22/20 2:45 PM, enh via Toybox wrote:
> This also changes the other compression options (such as -j) so that we
> pass no arguments for compression and just -d for decompression, which
> is what -I does to its filter and which appears sufficient. (I think I
> used -dc before just out of habit, since that's what I've been typing on
> the command line for decades.)

You added the -dc, the -f was there since the original submission in 2014. I'll
assume it works ok without it for now, and wait for something to break. :)

Rob