Paul Eggert wrote:
> On 03/01/2016 02:05 AM, Marcello Perathoner wrote:
>> 2) If you just output
>>
>>    binary line 42 in file x matches
>>
>> and continue regular output after the next newline, the breakage would be much
>> more confined.
>
> This sounds like a good suggestion.  That is, grep could keep going if its only
> problem is an attempt to output encoding errors (as opposed to reading null
> bytes, which are a more-reliable indication of binary data).  It would probably
> be better to output just one "Binary file matches" line per file, at the end of
> the other matches, so that it's more likely to be noticed.

I finally got around to implementing this, which turned out to be considerably 
easier than I thought it would be. I installed the attached patch into the grep 
Savannah master. I am boldly closing this old bug report; we can always start a 
new report if further problems turn up.