[m-rev.] diff: bootcheck test dirs one by one

[Peter Wang]

On Tue, 10 Feb 2015 02:53:40 +1100 (EST), "Zoltan Somogyi" <zoltan.somogyi at runbox.com> wrote:
> I have long wanted to do this, but it required flattening the
> test dirs first.
> 
> tools/bootcheck:
>     The current code in bootcheck does mmake $jfactor at the top level,
>     which mixes up messages from tests in different directories. After this
>     diff, we explicitly iterate through all the test directories, doing
>     mmake $jfactor in each directory, which avoids this mixing, thus making

As far as I can see we still suppress any parallelism within each test
directory.

Peter