On 5/16/22 08:36, Junio C Hamano wrote:
> "GNU grep has been doing so for the past 20 years and existing users
> of the command expects '-m 0' to behave that way" is a good enough
> reason, especially if '-m 0' is not the only possible way to say
> "unlimited".

Yes, I'm inclined in the same direction, now that I see more of the 
context. That is, GNU grep can continue what it's long been doing, with 
the only change being to the documentation so that we document -m-1 as 
meaning "unlimited". This minimizes possible disruption to existing 
scripts and satisfies the use case of having a way to turn off any 
previously-appearing -m option.

I installed the attached to the GNU grep master doc to do that. Hope 
this works for you.