gitweb: embed snapshot format parameter in PATH_INFO

diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index 79be4f1c0086fd1193734412019feeef8b07d669..2e62165fa9f48e1bff506b75895c081eb922b4ec 100644 (file)
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -75,8 +75,10 @@ OPTIONS
        read the message from the standard input.
 
 --author=<author>::
-       Override the author name used in the commit.  Use
-       `A U Thor <author@example.com>` format.
+       Override the author name used in the commit.  You can use the
+       standard `A U Thor <author@example.com>` format.  Otherwise,
+       an existing commit that matches the given string and its author
+       name is used.
 
 -m <msg>::
 --message=<msg>::
@@ -143,6 +145,10 @@ It is a rough equivalent for:
 ------
 but can be used to amend a merge commit.
 --
++
+You should understand the implications of rewriting history if you
+amend a commit that has already been published.  (See the "RECOVERING
+FROM UPSTREAM REBASE" section in linkgit:git-rebase[1].)
 
 -i::
 --include::