Fix wrong argument of rt_sigprocmask being used.

diff --git a/signal.c b/signal.c
index c52c8deb3624b4bcc97b29683279375a52f744a0..6afd0f54690f8729a0e049adeb85532ad5242748 100644 (file)
--- a/signal.c
+++ b/signal.c
@@ -1118,7 +1118,7 @@ sys_rt_sigprocmask(tcp)
                        tprintf("[?]");
                else
                        printsigmask(&sigset);
-               tprintf(", %lu", tcp->u_arg[4]);
+               tprintf(", %lu", tcp->u_arg[3]);
        }
        return 0;
 }