repo: correct the comment for `Repository#empty?`
@@ -1460,8 +1460,8 @@ static VALUE rb_git_repo_is_shallow(VALUE self)
* call-seq:
* repo.empty? -> true or false
*
- * Return whether a repository is empty or not. An empty repository has just
- * been initialized and has no commits yet.
+ * Return whether a repository is empty or not. An empty repository has HEAD
+ * pointing to the default value and there are no other references.
*/
static VALUE rb_git_repo_is_empty(VALUE self)
{
