Sync with 2.4.4

diff --git a/Documentation/git.txt b/Documentation/git.txt
index 338ebb7265cbc7f14e8894cc983f445aa72cf33d..dfbc2290c01dbeac8f6c290c66236baf9e3b3c44 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -838,6 +838,15 @@ Git so take care if using Cogito etc.
        an explicit repository directory set via 'GIT_DIR' or on the
        command line.
 
+'GIT_COMMON_DIR'::
+       If this variable is set to a path, non-worktree files that are
+       normally in $GIT_DIR will be taken from this path
+       instead. Worktree-specific files such as HEAD or index are
+       taken from $GIT_DIR. See linkgit:gitrepository-layout[5] and
+       the section 'MULTIPLE CHECKOUT MODE' in linkgit:checkout[1]
+       details. This variable has lower precedence than other path
+       variables such as GIT_INDEX_FILE, GIT_OBJECT_DIRECTORY...
+
 Git Commits
 ~~~~~~~~~~~
 'GIT_AUTHOR_NAME'::