user-manual: use pithier example commit

diff --git a/Documentation/git-commit-tree.txt b/Documentation/git-commit-tree.txt
index f5d8050c9e20b66455454b35a5431fe91562a2de..504a3aa1b460ffac9308bec4ff72cf657f8fec30 100644 (file)
--- a/Documentation/git-commit-tree.txt
+++ b/Documentation/git-commit-tree.txt
@@ -3,7 +3,7 @@ git-commit-tree(1)
 
 NAME
 ----
-git-commit-tree - Creates a new commit object
+git-commit-tree - Create a new commit object
 
 
 SYNOPSIS
@@ -60,6 +60,8 @@ either `.git/config` file, or using the following environment variables.
        GIT_AUTHOR_DATE
        GIT_COMMITTER_NAME
        GIT_COMMITTER_EMAIL
+       GIT_COMMITTER_DATE
+       EMAIL
 
 (nb "<", ">" and "\n"s are stripped)