RE: [Internet][PATCH] t5516: fail to run in verbose mode

> The test case "push with config push.useBitmap" of t5516 was introduced in
> commit 82f67ee13f (send-pack.c: add config push.useBitmaps, 2022-06-17). It
> won't work in verbose mode, e.g.:
> 
>     $ sh t5516-fetch-push.sh --run='1,115' -v
> 
> This is because "git-push" will run in a tty in this case, and the subcommand
> "git pack-objects" will contain an argument "--progress"
> instead of "-q". Adding a specific option "--quiet" to "git push" will get a stable
> result for t5516.
>