Defines starting with `t' in kern

• TB kern/tty.c:98
• TBF_INPROX kern/tty_tb.c:63
• TBF_POL kern/tty_tb.c:62
• TBMAXREC kern/tty_tb.c:89
• TOCONS kern/subr_prf.c:61
• TOLOG kern/subr_prf.c:63
• TOTTY kern/subr_prf.c:62
• TTYDEFCHARS kern/tty.c:50