Add hash_sha1_file()

diff --git a/Documentation/git-commit-tree.txt b/Documentation/git-commit-tree.txt
index 5cf6bd3e211f6b5d4b53821e2a88b91cc6d80070..41d1a1c4b340b17a545feebe9877def8b009933f 100644 (file)
--- a/Documentation/git-commit-tree.txt
+++ b/Documentation/git-commit-tree.txt
@@ -26,8 +26,9 @@ to get there.
 
 Normally a commit would identify a new "HEAD" state, and while git
 doesn't care where you save the note about that state, in practice we
-tend to just write the result to the file `.git/HEAD`, so that we can
-always see what the last committed state was.
+tend to just write the result to the file that is pointed at by
+`.git/HEAD`, so that we can always see what the last committed
+state was.
 
 OPTIONS
 -------
@@ -59,7 +60,8 @@ either `.git/config` file, or using the following environment variables.
 
 (nb "<", ">" and "\n"s are stripped)
 
-In `.git/config` file, the following items are used:
+In `.git/config` file, the following items are used for GIT_AUTHOR_NAME and
+GIT_AUTHOR_EMAIL:
 
        [user]
                name = "Your Name"