/*
 *  call-seq:
 *     dir.touch(file_name) -> nil
 *
 *  Create an empty file in the directory with the name +file_name+.
 */
static VALUE
frt_dir_touch(VALUE self, VALUE rfname)
{
    Store *store = DATA_PTR(self);
    StringValue(rfname);
    store->touch(store, rs2s(rfname));
    return Qnil;
}