Remove "volatile" from function declaration in SYNOPSIS. We may want to

replace it with __dead, but volatile is clearly wrong.

lib/libc/sys/_exit.2

@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)_exit.2	6.6 (Berkeley) 7/25/91
-.\"	$Id: _exit.2,v 1.2 1993/08/01 07:43:27 mycroft Exp $
+.\"	$Id: _exit.2,v 1.3 1993/10/04 18:09:24 jtc Exp $
 .\"
 .Dd July 25, 1991
 .Dt EXIT 2
@@ -40,7 +40,7 @@
 .Nd terminate the calling process
 .Sh SYNOPSIS
 .Fd #include <unistd.h>
-.Ft void volatile
+.Ft void 
 .Fn _exit "int status"
 .Sh DESCRIPTION
 The