submodule.c: use GIT_DIR_ENVIRONMENT consistently

diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index e316c4bd51a64fb9df87ce003f2edffad38b63ad..35cc34b2fb9a0e696eb86e208416fa93aae3c0c5 100644 (file)
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -197,6 +197,14 @@ objects from the source repository into a pack in the cloned repository.
        tips of all branches. If you want to clone submodules shallowly,
        also pass `--shallow-submodules`.
 
+--shallow-since=<date>::
+       Create a shallow clone with a history after the specified time.
+
+--shallow-exclude=<revision>::
+       Create a shallow clone with a history, excluding commits
+       reachable from a specified remote branch or tag.  This option
+       can be specified multiple times.
+
 --[no-]single-branch::
        Clone only the history leading to the tip of a single branch,
        either specified by the `--branch` option or the primary