Ah, thanks for pointing out. I understood it as the changes in grep 2.23 were deliberate, and during xenial this caused quite a lot of fallout which we fixed.
Reverting the behavior for C makes sense. Thus now we still need to find the actual fix in gnulib. Applying the doc and test to grep itself is still worthwhile though and should absolutely be part of the SRU.
Ah, thanks for pointing out. I understood it as the changes in grep 2.23 were deliberate, and during xenial this caused quite a lot of fallout which we fixed.
Reverting the behavior for C makes sense. Thus now we still need to find the actual fix in gnulib. Applying the doc and test to grep itself is still worthwhile though and should absolutely be part of the SRU.