rename libsa to libsndio

requested by many, "just go for it" deraadt@

src/include/Makefile

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.147 2008/10/26 12:02:53 espie Exp $
+#	$OpenBSD: Makefile,v 1.148 2008/10/27 00:26:33 ratchov Exp $
 #	$NetBSD: Makefile,v 1.59 1996/05/15 21:36:43 jtc Exp $
 
 #	@(#)Makefile	5.45.1.1 (Berkeley) 5/6/91
@@ -41,7 +41,7 @@ LDIRS=	altq crypto ddb dev isofs miscfs net netatalk netinet netinet6 \
 RDIRS=	../lib/libpthread ../lib/libcompat ../lib/libcurses \
 	../lib/libform ../lib/libssl ../lib/libmenu \
 	../lib/libocurses ../lib/libossaudio ../lib/libpanel ../lib/librpcsvc \
-	../lib/libsa ../lib/libskey ../lib/libsectok \
+	../lib/libsndio ../lib/libskey ../lib/libsectok \
 	../lib/libedit ../lib/libexpat \
 	../lib/libpcap ../lib/libutil ../lib/libusbhid ../lib/libwrap \
 	../lib/libz ../lib/libkeynote ../lib/libevent ../usr.bin/lex \