JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrif [ -z "${pfx}" ]; then desc_return="Return: @true if @v was updated, @false otherwise." fi cat <