Make diff flag check work for GNU diffutils 3.3
Created by: mrnugget
It seems that some point after GNU diffutils 2.8.1 the output changed from using a backtick to a single quote.
That's why the check fails even if the diff version supports it.
Created by: mrnugget
It seems that some point after GNU diffutils 2.8.1 the output changed from using a backtick to a single quote.
That's why the check fails even if the diff version supports it.