Severity: wishlist
Tags: patch

When running ERT from command-line with (ert-run-tests-batch ...), it
prints lots of lines for passed tests. The attached patch adds
variable `ert-quiet' that lets you omit such non-important lines:

    (let ((ert-quiet t)) (ert-run-tests-batch ...))

Of course, default is nil, so there is no change for existing
invocations. It is fully backward compatible. Users don't have to
check Emacs version prior to binding this variable: on older version
there will be no effect, but ERT will work.

Paul