contrib/chg/chg.c

--- a/contrib/chg/chg.c	Fri Feb 12 06:25:05 2016 -0800
+++ b/contrib/chg/chg.c	Fri Jan 29 22:42:22 2016 +0900
@@ -241,6 +241,7 @@
 	memset(&sa, 0, sizeof(sa));
 	sa.sa_handler = forwardsignal;
 	sa.sa_flags = SA_RESTART;
+	sigemptyset(&sa.sa_mask);
 
 	sigaction(SIGHUP, &sa, NULL);
 	sigaction(SIGINT, &sa, NULL);