update-index: do not die too early in a read-only repository.

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 977f661b9d7a1b92d27959429c48450a416c08b8..f2ef1f7dc093432e8b6c5644cbac5c5e857cb0ca 100644 (file)
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -7,7 +7,7 @@ git-rebase - Forward-port local commits to the updated upstream head
 
 SYNOPSIS
 --------
-'git-rebase' [-v] [--merge] [--onto <newbase>] <upstream> [<branch>]
+'git-rebase' [-v] [--merge] [-C<n>] [--onto <newbase>] <upstream> [<branch>]
 
 'git-rebase' --continue | --skip | --abort
 
@@ -196,6 +196,12 @@ OPTIONS
 -v, \--verbose::
        Display a diffstat of what changed upstream since the last rebase.
 
+-C<n>::
+       Ensure at least <n> lines of surrounding context match before
+       and after each change.  When fewer lines of surrounding
+       context exist they all must match.  By default no context is
+       ever ignored.
+
 include::merge-strategies.txt[]
 
 NOTES