Merge branch 'jc/rerere-autoupdate-doc'

Update documentation on the "--[no-]rerere-autoupdate" option.

* jc/rerere-autoupdate-doc:
  doc: clarify rerere-autoupdate
  doc: consolidate --rerere-autoupdate description

Author: gitster

Documentation/git-am.txt

@@ -112,10 +112,7 @@ default.   You can use `--no-utf8` to override this.
 	am.threeWay configuration variable. For more information,
 	see am.threeWay in linkgit:git-config[1].
 
---rerere-autoupdate::
---no-rerere-autoupdate::
-	Allow the rerere mechanism to update the index with the
-	result of auto-conflict resolution if possible.
+include::rerere-options.txt[]
 
 --ignore-space-change::
 --ignore-whitespace::

Documentation/git-cherry-pick.txt

@@ -156,10 +156,7 @@ effect to your index in a row.
 	Pass the merge strategy-specific option through to the
 	merge strategy.  See linkgit:git-merge[1] for details.
 
---rerere-autoupdate::
---no-rerere-autoupdate::
-	Allow the rerere mechanism to update the index with the
-	result of auto-conflict resolution if possible.
+include::rerere-options.txt[]
 
 SEQUENCER SUBCOMMANDS
 ---------------------

Documentation/git-merge.txt

@@ -90,10 +90,7 @@ invocations. The automated message can include the branch description.
 If `--log` is specified, a shortlog of the commits being merged
 will be appended to the specified message.
 
---rerere-autoupdate::
---no-rerere-autoupdate::
-	Allow the rerere mechanism to update the index with the
-	result of auto-conflict resolution if possible.
+include::rerere-options.txt[]
 
 --overwrite-ignore::
 --no-overwrite-ignore::

Documentation/git-rebase.txt

@@ -376,10 +376,7 @@ See also INCOMPATIBLE OPTIONS below.
 +
 See also INCOMPATIBLE OPTIONS below.
 
---rerere-autoupdate::
---no-rerere-autoupdate::
-	Allow the rerere mechanism to update the index with the
-	result of auto-conflict resolution if possible.
+include::rerere-options.txt[]
 
 -S[<keyid>]::
 --gpg-sign[=<keyid>]::

Documentation/git-revert.txt

@@ -112,10 +112,7 @@ effect to your index in a row.
 	Pass the merge strategy-specific option through to the
 	merge strategy.  See linkgit:git-merge[1] for details.
 
---rerere-autoupdate::
---no-rerere-autoupdate::
-	Allow the rerere mechanism to update the index with the
-	result of auto-conflict resolution if possible.
+include::rerere-options.txt[]
 
 --reference::
 	Instead of starting the body of the log message with "This

Documentation/rerere-options.txt

@@ -0,0 +1,9 @@
+--rerere-autoupdate::
+--no-rerere-autoupdate::
+	After the rerere mechanism reuses a recorded resolution on
+	the current conflict to update the files in the working
+	tree, allow it to also update the index with the result of
+	resolution.  `--no-rerere-autoupdate` is a good way to
+	double-check what `rerere` did and catch potential
+	mismerges, before committing the result to the index with a
+	separate `git add`.