axfer: add informative output and an option to suppress it
In current aplay, some informative output is available as a default. This
can be suppressed by a quiet option. This commit adds support for it.
An original aplay implementation has no effect of this option in a case
to handle multiple files. However, in a point of usability, this commit
support this case.
git://git.alsa-project.org / alsa-utils.git / commit