signal: Pass pid type into group_send_sig_info

This passes the information we already have at the call sight
into group_send_sig_info.  Ultimatelly allowing for to better handle
signals sent to a group of processes.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/kernel/exit.c b/kernel/exit.c
index 25582b4..0e21e6d 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -681,7 +681,8 @@
 				t->parent = t->real_parent;
 			if (t->pdeath_signal)
 				group_send_sig_info(t->pdeath_signal,
-						    SEND_SIG_NOINFO, t);
+						    SEND_SIG_NOINFO, t,
+						    PIDTYPE_TGID);
 		}
 		/*
 		 * If this is a threaded reparent there is no need to