Documentation: AsciiDoc spells em-dash as double-dashes, not triple

Again, we do not usually process release notes with AsciiDoc, but it
is better to be consistent.

This incidentally reveals breakages left by an ancient 5e00439f
(Documentation: build html for all files in technical and howto,
2012-10-23).  The index-format documentation was originally written
to be read as straight text without formatting and when the commit
forced everything in Documentation/ to go through AsciiDoc, it did
not do any adjustment--hence the double-dashes will be seen in the
resulting text that is rendered as preformatted fixed-width without
converted into em-dashes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt
index 4cb52a7..617efa0 100644
--- a/Documentation/git-bisect.txt
+++ b/Documentation/git-bisect.txt
@@ -245,7 +245,7 @@ cannot be tested. If the script exits with this code, the current
 revision will be skipped (see `git bisect skip` above). 125 was chosen
 as the highest sensible value to use for this purpose, because 126 and 127
 are used by POSIX shells to signal specific error status (127 is for
-command not found, 126 is for command found but not executable---these
+command not found, 126 is for command found but not executable--these
 details do not matter, as they are normal errors in the script, as far as
 "bisect run" is concerned).