Fix #210: simplify escape code to clear line

Since we just want to clear the complete line, and are already a the
beginning of the line, we can use the simpler \e[K which also seems
to fix the display resize bug in #210.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/getty.c

@@ -196,7 +196,7 @@ static int do_login(char *name)
 
 static int getty(char *tty, speed_t speed, char *term, char *user)
 {
-	const char cln[] = "\r\e[2K\n";
+	const char cln[] = "\r\e[K\n";
 	char name[33];		/* useradd(1) limit at 32 chars */
 	pid_t sid;