git config --unset: remove empty sections (in the common case)

diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt
index a34190bb889abcaf12c24e739115d79b6347be83..f2a07d54d694b42657aa38e71dc0eeb5fc94e9a0 100644 (file)
--- a/Documentation/git-read-tree.txt
+++ b/Documentation/git-read-tree.txt
@@ -114,6 +114,12 @@ OPTIONS
        directories the index file and index output file are
        located in.
 
+--[no-]recurse-submodules::
+       Using --recurse-submodules will update the content of all initialized
+       submodules according to the commit recorded in the superproject by
+       calling read-tree recursively, also setting the submodules HEAD to be
+       detached at that commit.
+
 --no-sparse-checkout::
        Disable sparse checkout support even if `core.sparseCheckout`
        is true.
@@ -130,7 +136,7 @@ Merging
 -------
 If `-m` is specified, 'git read-tree' can perform 3 kinds of
 merge, a single tree merge if only 1 tree is given, a
-fast-forward merge with 2 trees, or a 3-way merge if 3 trees are
+fast-forward merge with 2 trees, or a 3-way merge if 3 or more trees are
 provided.
 
 
@@ -172,6 +178,7 @@ Here are the "carry forward" rules, where "I" denotes the index,
 "clean" means that index and work tree coincide, and "exists"/"nothing"
 refer to the presence of a path in the specified commit:
 
+....
        I                   H        M        Result
        -------------------------------------------------------
      0  nothing             nothing  nothing  (does not happen)
@@ -210,6 +217,7 @@ refer to the presence of a path in the specified commit:
      19 no    no    yes     exists   exists   keep index
      20 yes   yes   no      exists   exists   use M
      21 no    yes   no      exists   exists   fail
+....
 
 In all "keep index" cases, the index entry stays as in the
 original index file.  If the entry is not up to date,