- don't bitch if /usr/X11R6/lib/X11 does not exist, if /usr/X11R6 does not

exist either. We might have never installed X11R6 on this system.
- spell nonexistent

usr.sbin/postinstall/postinstall

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: postinstall,v 1.109 2010/11/08 09:01:44 njoly Exp $
+# $NetBSD: postinstall,v 1.110 2010/11/21 22:50:37 christos Exp $
 #
 # Copyright (c) 2002-2008 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -633,7 +633,7 @@ detect_x11()
 			MKX11=no
 			X11ROOTDIR=
 		fi
-		X11SRCDIR=/nonexisent/xsrc
+		X11SRCDIR=/nonexistent/xsrc
 	fi
 }
 
@@ -1305,10 +1305,13 @@ do_x11()
 		msg "${_etcx11} is not a directory; skipping check"
 		return 0
 	fi
-	_libx11="${DEST_DIR}/usr/X11R6/lib/X11"
-	if [ ! -d "${_libx11}" ]; then
-		msg "${_libx11} is not a directory; skipping check"
-		return 0
+	if [ -d "${DEST_DIR}/usr/X11R6/." ]
+	then
+		_libx11="${DEST_DIR}/usr/X11R6/lib/X11"
+		if [ ! -d "${_libx11}" ]; then
+			msg "${_libx11} is not a directory; skipping check"
+			return 0
+		fi
 	fi
 
 	_notfixed=""