Add hash_sha1_file()

diff --git a/Documentation/git-commit-tree.txt b/Documentation/git-commit-tree.txt
index 705be4e3346f61f1c7b061f8efd6dc907f769a4a..41d1a1c4b340b17a545feebe9877def8b009933f 100644 (file)
--- a/Documentation/git-commit-tree.txt
+++ b/Documentation/git-commit-tree.txt
@@ -1,6 +1,5 @@
 git-commit-tree(1)
 ==================
-v0.1, May 2005
 
 NAME
 ----
@@ -9,7 +8,7 @@ git-commit-tree - Creates a new commit object
 
 SYNOPSIS
 --------
-'git-commit-tree' <tree> [-p <parent commit>]\   < changelog
+'git-commit-tree' <tree> [-p <parent commit>]\* < changelog
 
 DESCRIPTION
 -----------
@@ -27,8 +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
 -------
@@ -36,7 +36,7 @@ OPTIONS
        An existing tree object
 
 -p <parent commit>::
-       Each '-p' indicates a the id of a parent commit object.
+       Each '-p' indicates the id of a parent commit object.
        
 
 Commit Information
@@ -49,8 +49,8 @@ A commit encapsulates:
 - committer name and email and the commit time.
 
 If not provided, "git-commit-tree" uses your name, hostname and domain to
-provide author and committer info. This can be overridden using the
-following environment variables.
+provide author and committer info. This can be overridden by
+either `.git/config` file, or using the following environment variables.
 
        GIT_AUTHOR_NAME
        GIT_AUTHOR_EMAIL
@@ -58,11 +58,19 @@ following environment variables.
        GIT_COMMITTER_NAME
        GIT_COMMITTER_EMAIL
 
-(nb <,> and '\n's are stripped)
+(nb "<", ">" and "\n"s are stripped)
+
+In `.git/config` file, the following items are used for GIT_AUTHOR_NAME and
+GIT_AUTHOR_EMAIL:
+
+       [user]
+               name = "Your Name"
+               email = "your@email.address.xz"
 
 A commit comment is read from stdin (max 999 chars). If a changelog
-entry is not provided via '<' redirection, "git-commit-tree" will just wait
-for one to be entered and terminated with ^D
+entry is not provided via "<" redirection, "git-commit-tree" will just wait
+for one to be entered and terminated with ^D.
+
 
 Diagnostics
 -----------