If system doesn't have termios.h, assume at least 79 char width

Any normal system have at leasst 80x24 terminals, but then there was
Windows and their default HyperTerm which b0rks on line breaks on the
last column.  Users connecting over a serial console to a device running
pimd, and plagued with HyperTerm because their IT policy prevents them
from installing PuTTY, will probably thank me one day.

Signed-off-by: Joachim Wiberg <[email protected]>

src/pimctl.c

@@ -252,7 +252,7 @@ static int ipc_ping(void)
 #define ESC "\033"
 static int get_width(void)
 {
-	int ret = 74;
+	int ret = 79;
 #ifdef HAVE_TERMIOS_H
 	char buf[42];
 	struct termios tc, saved;