#include "mailmap.h"
 
 static const char * const builtin_commit_usage[] = {
-       N_("git commit [options] [--] <pathspec>..."),
+       N_("git commit [<options>] [--] <pathspec>..."),
        NULL
 };
 
 static const char * const builtin_status_usage[] = {
-       N_("git status [options] [--] <pathspec>..."),
+       N_("git status [<options>] [--] <pathspec>..."),
        NULL
 };
 
        if (!transaction ||
            ref_transaction_update(transaction, "HEAD", sha1,
                                   current_head
-                                  ? current_head->object.sha1 : NULL,
-                                  0, !!current_head, sb.buf, &err) ||
+                                  ? current_head->object.sha1 : null_sha1,
+                                  0, sb.buf, &err) ||
            ref_transaction_commit(transaction, &err)) {
                rollback_index_files();
                die("%s", err.buf);