[PATCH] revisions.txt: escape "..." to avoid asciidoc horizontal ellipsis

In asciidoc's HTML output of the "gitrevisions" and "git-rev-parse" documentation, the header:

  The ... (three-dot) Symmetric Difference Notation

is rendered using "&8230;", a horizontal ellipsis. This is visually ugly, but also hard to search for or cut-and-paste. We really mean three ascii dots (0x2e) here, so let's make sure it renders as such.

The simplest way to do that is just escaping the leading dot, as the instances in the rest of the section do. Arguably this should all be converted to use backticks, which would let us drop the quoting here and elsewhere (e.g., {carat}). But that does change the rendering slightly. So let's fix the bug first, and we can decide on migrating the whole section separately.

Note that this produces an empty doc-diff of the manpages. Curiously, asciidoc produces the same ellipsis entity in the XML file, but docbook then converts it back into three literal dots for the roff output! So the roff manpages have been correct all along (which may be a reason nobody noticed this until now).

Reported-by: Arthur Milchior
Signed-off-by: Jeff King <peff@peff.net>
---
This was originally reported via https://github.com/git/git-scm.com/issues/1700,
hence no email address for the reporter. I'm not sure if that makes it
too useless to keep, but I mostly wanted to give credit.

 Documentation/revisions.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)