Fix #84: Reset TTY w/ stty() before taking any pre-getty action

This patch moves the stty() function from getty.c to a separate file so
it can be called from exec.c as well.  The fix to #84 is simply to call
stty() in prepare_tty(), which is shared by run_getty() and run_getty2()
and called before "Please press Enter ...".

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

src/Makefile.am

@@ -14,7 +14,7 @@ finit_SOURCES      = api.c					\
 		     client.c					\
 		     conf.c	conf.h				\
 		     exec.c	finit.c		finit.h		\
-		     getty.c					\
+		     getty.c	stty.c				\
 		     helpers.c	helpers.h			\
 		     log.c	log.h				\
 		     mdadm.c	mount.c		pid.c		\