[PATCH v3 2/2] docs: rewrite rebase --(no-)autosquash description

[Andy Koppe <andy.koppe@gmail.com>]

Rewrite the description of the rebase --(no-)autosquash options to try
to make it a bit clearer. Don't use "the '...'" to refer to part of a
commit message, mention how --interactive can be used to review the
todo list, and add a bit more detail on commit --squash/amend.

Signed-off-by: Andy Koppe <andy.koppe@gmail.com>
---
 Documentation/git-rebase.txt | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 102ff91493..594158fcbc 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -589,21 +589,25 @@ See also INCOMPATIBLE OPTIONS below.
 
 --autosquash::
 --no-autosquash::
-	When the commit log message begins with "squash! ..." or "fixup! ..."
-	or "amend! ...", and there is already a commit in the todo list that
-	matches the same `...`, automatically modify the todo list of
-	`rebase`, so that the commit marked for squashing comes right after
-	the commit to be modified, and change the action of the moved commit
-	from `pick` to `squash` or `fixup` or `fixup -C` respectively. A commit
-	matches the `...` if the commit subject matches, or if the `...` refers
-	to the commit's hash. As a fall-back, partial matches of the commit
-	subject work, too. The recommended way to create fixup/amend/squash
-	commits is by using the `--fixup`, `--fixup=amend:` or `--fixup=reword:`
-	and `--squash` options respectively of linkgit:git-commit[1].
+	Automatically squash commits with specially formatted messages into
+	previous commits.  If a commit message starts with "squash! ",
+	"fixup! " or "amend! ", the remainder of the subject line is taken
+	as a commit specifier, which matches a previous commit if it matches
+	the start of the subject line or the hash of that commit.
 +
-If the `--autosquash` option is enabled by default using the
-configuration variable `rebase.autoSquash`, this option can be
-used to override and disable this setting.
+In the rebase todo list, commits marked for squashing are moved right after
+the commits they modify, and their action is changed from `pick` to `squash`,
+`fixup` or `fixup -C`, depending on the squash marker.  The `--interactive`
+option can be used to review and edit the todo list before proceeding.
++
+The recommended way to create commits with squash markers is by using the
+`--squash`, `--fixup`, `--fixup=amend:` or `--fixup=reword:` options of
+linkgit:git-commit[1], which take the target commit as an argument and
+automatically fill in the subject line of the new commit from that.
++
+The configuration variable `rebase.autoSquash` can be used to enable
+`--autosquash` by default.  See the CONFIGURATION section below for details.
+The `--no-autosquash` option overrides that setting.
 +
 See also INCOMPATIBLE OPTIONS below.
 
-- 
2.43.0-rc0