[PATCH] Documentation: render dash correctly

[Andrei Rybak <rybak.a.v@gmail.com>]

Three hyphens are rendered verbatim in documentation, so "--" has to be
used to produce a dash.  Fix asciidoc output for dashes.  This is
similar to previous commits f0b922473e (Documentation: render special
characters correctly, 2021-07-29) and de82095a95 (doc
hash-function-transition: fix asciidoc output, 2021-02-05).

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
---
 Documentation/git-apply.txt                          | 2 +-
 Documentation/git-read-tree.txt                      | 2 +-
 Documentation/git.txt                                | 2 +-
 Documentation/technical/hash-function-transition.txt | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt
index 1d478cbe9b..5e16e6db7e 100644
--- a/Documentation/git-apply.txt
+++ b/Documentation/git-apply.txt
@@ -208,7 +208,7 @@ behavior:
 * `warn` outputs warnings for a few such errors, but applies the
   patch as-is (default).
 * `fix` outputs warnings for a few such errors, and applies the
-  patch after fixing them (`strip` is a synonym --- the tool
+  patch after fixing them (`strip` is a synonym -- the tool
   used to consider only trailing whitespace characters as errors, and the
   fix involved 'stripping' them, but modern Gits do more).
 * `error` outputs warnings for a few such errors, and refuses
diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt
index 7567955bad..b09707474d 100644
--- a/Documentation/git-read-tree.txt
+++ b/Documentation/git-read-tree.txt
@@ -219,7 +219,7 @@ see which of the "local changes" that you made were carried forward by running
 `git diff-index --cached $M`.  Note that this does not
 necessarily match what `git diff-index --cached $H` would have
 produced before such a two tree merge.  This is because of cases
-18 and 19 --- if you already had the changes in $M (e.g. maybe
+18 and 19 -- if you already had the changes in $M (e.g. maybe
 you picked it up via e-mail in a patch form), `git diff-index
 --cached $H` would have told you about the change before this
 merge, but it would not show in `git diff-index --cached $M`
diff --git a/Documentation/git.txt b/Documentation/git.txt
index f9a7a4554c..74973d3cc4 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -613,7 +613,7 @@ The file parameters can point at the user's working file
 (e.g. `new-file` in "git-diff-files"), `/dev/null` (e.g. `old-file`
 when a new file is added), or a temporary file (e.g. `old-file` in the
 index).  `GIT_EXTERNAL_DIFF` should not worry about unlinking the
-temporary file --- it is removed when `GIT_EXTERNAL_DIFF` exits.
+temporary file -- it is removed when `GIT_EXTERNAL_DIFF` exits.
 +
 For a path that is unmerged, `GIT_EXTERNAL_DIFF` is called with 1
 parameter, <path>.
diff --git a/Documentation/technical/hash-function-transition.txt b/Documentation/technical/hash-function-transition.txt
index e2ac36dd21..ed57481089 100644
--- a/Documentation/technical/hash-function-transition.txt
+++ b/Documentation/technical/hash-function-transition.txt
@@ -562,7 +562,7 @@ hash re-encode during clone and to encourage peers to modernize.
 The design described here allows fetches by SHA-1 clients of a
 personal SHA-256 repository because it's not much more difficult than
 allowing pushes from that repository. This support needs to be guarded
-by a configuration option --- servers like git.kernel.org that serve a
+by a configuration option -- servers like git.kernel.org that serve a
 large number of clients would not be expected to bear that cost.
 
 Meaning of signatures
-- 
2.39.0