tests: move test_cmp_rev to test-lib-functions

diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index decd3701eb52406221444b9c3e92959abd9785eb..4314ad0fbb617b9f4c9c4e3d45f5d08f89259e2b 100644 (file)
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -57,8 +57,8 @@ diff.statGraphWidth::
        to all commands generating --stat output except format-patch.
 
 diff.context::
-       Generate diffs with <n> lines of context instead of the default of
-       3. This value is overridden by the -U option.
+       Generate diffs with <n> lines of context instead of the default
+       of 3. This value is overridden by the -U option.
 
 diff.external::
        If this config variable is set, diff generation is not
@@ -107,6 +107,13 @@ diff.suppressBlankEmpty::
        A boolean to inhibit the standard behavior of printing a space
        before each empty output line. Defaults to false.
 
+diff.submodule::
+       Specify the format in which differences in submodules are
+       shown.  The "log" format lists the commits in the range like
+       linkgit:git-submodule[1] `summary` does.  The "short" format
+       format just shows the names of the commits at the beginning
+       and end of the range.  Defaults to short.
+
 diff.wordRegex::
        A POSIX Extended Regular Expression used to determine what is a "word"
        when performing word-by-word difference calculations.  Character