daemon: use full buffered mode for stderr

diff --git a/fast-import.c b/fast-import.c
index 2317b0fe7509b957577234890135509143c0872b..77549ebd6fbfbea051901d4ab474eebc8e2dbdbd 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -1454,6 +1454,15 @@ static int tree_content_set(
                n = slash1 - p;
        else
                n = strlen(p);
+       if (!slash1 && !n) {
+               if (!S_ISDIR(mode))
+                       die("Root cannot be a non-directory");
+               hashcpy(root->versions[1].sha1, sha1);
+               if (root->tree)
+                       release_tree_content_recursive(root->tree);
+               root->tree = subtree;
+               return 1;
+       }
        if (!n)
                die("Empty path component found in input");
        if (!slash1 && !S_ISDIR(mode) && subtree)
@@ -2884,7 +2893,7 @@ static int git_pack_config(const char *k, const char *v, void *cb)
 }
 
 static const char fast_import_usage[] =
-"git fast-import [--date-format=f] [--max-pack-size=n] [--big-file-threshold=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file]";
+"git fast-import [--date-format=<f>] [--max-pack-size=<n>] [--big-file-threshold=<n>] [--depth=<n>] [--active-branches=<n>] [--export-marks=<marks.file>]";
 
 static void parse_argv(void)
 {