For this to matter, it seems that I would have to be in the situation of: * running a regex not in multi-line mode * on input that was presumably split from m

For this to matter, it seems that I would have to be in the situation of: * running a regex not in multi-line mode * on input that was presumably split from multiple lines, or within a line of multi-line input * wherein I care whether the line in question is the last line of input without a trailing newline * but I didn't check, or `.strip()` or anything I can't say I recall ever being bitten by this. And there is also nothing here to justify \A over ^.