ktest: Restore stty setting at first in dodie

The do_send_email() will call die before restoring stty if sendmail
setting is not correct or sendmail is not installed. It is safer to
restore it in the beginning of dodie().

Link: https://lkml.kernel.org/r/167420617635.2988775.13045295332829029437.stgit@devnote3

Cc: John 'Warthog9' Hawley <warthog9@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

tools/testing/ktest/ktest.pl

@@ -1538,6 +1538,11 @@ sub dodie {
     return if ($in_die);
     $in_die = 1;
 
+    if ($monitor_cnt) {
+	# restore terminal settings
+	system("stty $stty_orig");
+    }
+
     my $i = $iteration;
 
     doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
@@ -1584,11 +1589,6 @@ sub dodie {
 		"Your test started at $script_start_time has failed with:\n@_\n", $log_file);
     }
 
-    if ($monitor_cnt) {
-	# restore terminal settings
-	system("stty $stty_orig");
-    }
-
     if (defined($post_test)) {
 	run_command $post_test;
     }