CC is off by one byte on linux

[nkovacs]

On Ubuntu 15.10 (amd64) and Raspbian on a Raspberry Pi 2 the Termios struct contains an extra unsigned char before the CC array (c_line). Because of this everything was off by one byte, e.g. VMIN was interpreted as VTIME.

[creack]

Indeed! Missing the line discipline.

[gfa]

I'm having problems running the tests on linux, and i think it may be this issue

=== RUN TestCfMakeRaw
--- FAIL: TestCfMakeRaw (0.00s)
raw_test.go:44: Unexpected Raw termios.
Got: raw.Termios{Iflag:0x2a00, Oflag:0x0, Cflag:0x4a30, Lflag:0x580, Cc:[20]uint8{0x4, 0xff, 0xff, 0xff, 0x17, 0x0, 0x1, 0xff, 0x3, 0x1c, 0x1a, 0x19, 0x11, 0x13, 0x16, 0xf, 0xff, 0xff, 0x14, 0xff}, Ispeed:0x2580, Ospeed:0x2580}
Want: raw.Termios{Iflag:0x2800, Oflag:0x0, Cflag:0x4b00, Lflag:0x43, Cc:[20]uint8{0x4, 0xff, 0xff, 0xff, 0x17, 0xff, 0x12, 0xff, 0x3, 0x1c, 0x1a, 0x19, 0x11, 0x13, 0x16, 0xf, 0x1, 0x0, 0x14, 0xff}, Ispeed:0x2580, Ospeed:0x2580}