bug#61340: 29.0.60; Extra space in xref buffer

[Dmitry Gutov <dgutov@yandex.ru>]

On 08/02/2023 09:35, Juri Linkov wrote:
> close 61340 30.0.50
> thanks
> 
>>> @@ -1108,7 +1108,7 @@ xref--insert-xrefs
>>>                                       maximize (xref-location-line
>>>                                                 (xref-item-location xref)))
>>>               for line-format = (and max-line
>>> -                                  (format "%%%dd: " (1+ (floor (log max-line 10)))))
>>> +                                  (format "%%%dd:" (1+ (floor (log max-line 10)))))
>>>               with item-text-props = (list 'mouse-face 'highlight
>>>                                            'keymap xref--button-map
>>>                                            'help-echo
>>> ```
>> This was originally an effort to give the outputted text some "breathing
>> room", and I think it looks a little better.
> Indeed, it looks better but unfortunately at the cost of caused ambiguity.
> I guess this is the reason why Grep and Occur don't add space.
> 

I suppose we could try to tone down the colon. Occur uses 'shadow' for 
both the number and the colon; Grep uses the color from 'default' (with 
an underline).

If we fontify it with 'shadow' rather than 'xref-line-number', that 
might look a little better.