Merge branch 'jk/maint-push-progress' into maint

"git push" over smart-http lost progress output a few releases ago.

By Jeff King
* jk/maint-push-progress:
  t5541: test more combinations of --progress
  teach send-pack about --[no-]progress
  send-pack: show progress when isatty(2)

remote-curl.c

@@ -782,6 +782,7 @@ static int push_git(struct discovery *heads, int nr_spec, char **specs)
 		argv[argc++] = "--quiet";
 	else if (options.verbosity > 1)
 		argv[argc++] = "--verbose";
+	argv[argc++] = options.progress ? "--progress" : "--no-progress";
 	argv[argc++] = url;
 	for (i = 0; i < nr_spec; i++)
 		argv[argc++] = specs[i];