bug#30016: Improve visibility of Process List

[Juri Linkov]

>> diff --git a/lisp/simple.el b/lisp/simple.el
>> index 87e0b23..6e8930b 100644
>> --- a/lisp/simple.el
>> +++ b/lisp/simple.el
>> @@ -3927,7 +3927,7 @@ process-menu-mode
>>    (setq tabulated-list-format [("Process" 15 t)
>>                             ("PID"      7 t)
>>                             ("Status"   7 t)
>> -                           ("Buffer"  15 t)
>> +                           ("Buffer"  25 t)
>>                             ("TTY"     12 t)
>>                             ("Command"  0 t)])
>>    (make-local-variable 'process-menu-query-only)
>
> If we eventually decide to go with this simple change, there should be
> a comment explaining the value and its use case, and perhaps also a
> test for that.

I added a comment explaining the value and its use case.
With another change that makes its window wider to the frame's width
near the minibuffer, no useful information should be pushed out of sight.

Regarding displaying the column suffixes or making columns resizeable,
both are big tasks and could be implemented in a separate feature request.