write_index: optionally allow broken null sha1s

diff --git a/Documentation/urls.txt b/Documentation/urls.txt
index 3ca122faedd01cfbd61bf07dbc245b04f40f2b23..64dae20b00fffc3acb0866a6c96d27f89ae2af23 100644 (file)
--- a/Documentation/urls.txt
+++ b/Documentation/urls.txt
@@ -11,6 +11,9 @@ and ftps can be used for fetching and rsync can be used for fetching
 and pushing, but these are inefficient and deprecated; do not use
 them).
 
+The native transport (i.e. git:// URL) does no authentication and
+should be used with caution on unsecured networks.
+
 The following syntaxes may be used with them:
 
 - ssh://{startsb}user@{endsb}host.xz{startsb}:port{endsb}/path/to/repo.git/
@@ -33,7 +36,7 @@ For local repositories, also supported by Git natively, the following
 syntaxes may be used:
 
 - /path/to/repo.git/
-- file:///path/to/repo.git/
+- \file:///path/to/repo.git/
 
 ifndef::git-clone[]
 These two syntaxes are mostly equivalent, except when cloning, when