Documentation updates.

diff --git a/fsck-cache.c b/fsck-cache.c
index 8091780193b94c9855855656538c64f4a707a212..e53d01a40ffd98f1cb3a571776b0e050551938f1 100644 (file)
--- a/fsck-cache.c
+++ b/fsck-cache.c
@@ -390,7 +390,10 @@ static int fsck_head_link(void)
        char hex[40];
        unsigned char sha1[20];
        static char path[PATH_MAX], link[PATH_MAX];
-       const char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
+       const char *git_dir;
+
+       git_dir = gitenv(GIT_DIR_ENVIRONMENT);
+       if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
 
        snprintf(path, sizeof(path), "%s/HEAD", git_dir);
        if (readlink(path, link, sizeof(link)) < 0)
@@ -451,7 +454,7 @@ int main(int argc, char **argv)
        if (standalone && check_full)
                die("Only one of --standalone or --full can be used.");
        if (standalone)
-               unsetenv("GIT_ALTERNATE_OBJECT_DIRECTORIES");
+               putenv("GIT_ALTERNATE_OBJECT_DIRECTORIES=");
 
        fsck_head_link();
        fsck_object_dir(get_object_directory());