* fhandler_termios.cc (fhandler_termios::line_edit): Use special case '%0c'

* fhandler_termios.cc (fhandler_termios::line_edit): Use special case '%0c'
handling to print non-printable characters using hex notation.
* smallprint.cc (__small_vsprintf): Semi-reimplement printing of non-printable
characters in hex but only when padding is specified.
* dcrt0.cc (dll_crt0_0): Remove tty_list initialization.
* shared.cc (memory_init): Initialize tty_list here.
* path.cc (path_conv::check): Remove unneeded parentheses from if check.