Re: [PATCH] rebase--interactive: do not use one-or-more (\+) in sed.

On 2 Sep 2007, David Kastrup uttered the following:

As usual, <URL:info:autoconf#Limitations%20of%20Usual%20Tools> (aka as
(info "(autoconf) Limitations of Usual Tools")
) provides a real horror show of sed variants.

A goodly number of things in that section of the Autoconf manual are
passing on hints and ancient legends that may or may not be accurate:
I've found a number of its descriptions of shell limitations to be
downright wrong (applying to one build of one shell back in 1981 that
was never shipped to anyone, that sort of thing).

(Of course it's valuable, even if it *is* a compendium of legends. But
confirming any of it is quite hard.)