git grep: Add "-z/--null" option as in GNU's grep.

diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index e2437f30ca1314dc00a55f72c4e2a325cc75c7b6..3c3e1b0e77abe171ac7531b8098ea2af7d6809dd 100644 (file)
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -179,6 +179,9 @@ user is prompted for a password while the input is masked for privacy.
        This is useful if your default address is not the address that is
        subscribed to a list. If you use the sendmail binary, you must have
        suitable privileges for the -f parameter.
+       Default is the value of the 'sendemail.envelopesender' configuration
+       variable; if that is unspecified, choosing the envelope sender is left
+       to your MTA.
 
 --to::
        Specify the primary recipient of the emails generated.