Merge branch 'jc/doc-log-rev-list-options' into maint

"git log --help" used to show rev-list options that are irrelevant
to the "log" command.

* jc/doc-log-rev-list-options:
Documentation: what does "git log --indexed-objects" even mean?

diff --cc Documentation/rev-list-options.txt
index 2984f407a9f3084235fd0207a82ea44a424942ed,c88d5e142cc5ae9d56e51bbf4b072a2aa0d5dfd1..97ef2e8e71c1f8898453df4ed81877434097f7a1
--- 1/Documentation/rev-list-options.txt
--- 2/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@@ -657,11 -653,11 +653,16 @@@ ifdef::git-rev-list[
        objects in deltified form based on objects contained in these
        excluded commits to reduce network traffic.
  
 +--objects-edge-aggressive::
 +      Similar to `--objects-edge`, but it tries harder to find excluded
 +      commits at the cost of increased time.  This is used instead of
 +      `--objects-edge` to build ``thin'' packs for shallow repositories.
 +
+ --indexed-objects::
+       Pretend as if all trees and blobs used by the index are listed
+       on the command line.  Note that you probably want to use
+       `--objects`, too.
+ 
  --unpacked::
        Only useful with `--objects`; print the object IDs that are not
        in packs.