Documentation/gitmodules: Only 'update' and 'url' are required

Descriptions for all the settings fell under the initial "Each
submodule section also contains the following required keys:".  The
example shows sections with just 'path' and 'url' entries, which are
indeed required, but we should still make the required/optional
distinction explicit to clarify that the rest of them are optional.

Signed-off-by: W. Trevor King <wking@tremily.us>
Reviewed-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/gitmodules.txt b/Documentation/gitmodules.txt
index f7be93f6317c7170af642c43d107a6617eb33a18..347a9f76ee809c3691dc6580b0fba3ebde0b0e3c 100644 (file)
--- a/Documentation/gitmodules.txt
+++ b/Documentation/gitmodules.txt
@@ -35,6 +35,8 @@ submodule.<name>.url::
        linkgit:git-clone[1] or (if it begins with ./ or ../) a location
        relative to the superproject's origin repository.
 
+In addition, there are a number of optional keys:
+
 submodule.<name>.update::
        Defines what to do when the submodule is updated by the superproject.
        If 'checkout' (the default), the new commit specified in the