setup.c: detect $GIT_COMMON_DIR in is_git_directory()

diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt
index dbe9a46833f2b18bb06c0b60db76930befb88d43..929e496af8d6b93904cb91d2148272516dd92033 100644 (file)
--- a/Documentation/git-fast-export.txt
+++ b/Documentation/git-fast-export.txt
@@ -209,6 +209,10 @@ Since 'git fast-import' cannot tag trees, you will not be
 able to export the linux.git repository completely, as it contains
 a tag referencing a tree instead of a commit.
 
+SEE ALSO
+--------
+linkgit:git-fast-import[1]
+
 GIT
 ---
 Part of the linkgit:git[1] suite