Tools: setup-unit: ps: forcing full lines from ps(1).

Some ps(1) implementations trim lines to 80 columns, even if the output
is being piped.  Let's force ps(1) to output full lines with `ww`, which
is not in POSIX, but seems to be portable enough.

On 2023-06-08 13:19, Andrew Clayton wrote:
> Just for posterity...
>
> BusyBox ps(1) knows about a grand total of 2 options!
>
> BusyBox v1.35.0 (2022-11-19 10:13:10 UTC) multi-call binary.
>
> Usage: ps [-o COL1,COL2=HEADER] [-T]
>
> Show list of processes
>
>         -o COL1,COL2=HEADER     Select columns for display
>         -T                      Show threads
>
> But at least it doesn't make it worse.  In fact all of these three do
> exactly the same thing
>
> ps
> ps ax
> ps axww
>
> I.e it ignores any non option argument...
>
> It does however help on OpenIndiana...

Link: <https://github.com/nginx/unit/issues/875>
Link: <https://github.com/nginx/unit/issues/886>
Link: <https://github.com/nginx/unit/pull/885>
Cc: <https://github.com/mattxtaz>
Cc: Liam Crilly <liam@nginx.com>
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@nginx.com>

tools/setup-unit

@@ -1031,7 +1031,7 @@ unit_ps()
         shift;
     done;
 
-    ps ax \
+    ps awwx \
     | if test -v type; then
         grep ${type_c:+-e 'unit: controller'} \
              ${type_m:+-e 'unit: main'} \