Bump shlib version

Instigate symbol versioning
Pray that I don't break the build.

lib/libsbuf/Makefile

@@ -1,8 +1,13 @@
 # $FreeBSD$
 
-LIB=	sbuf
-SHLIBDIR?= /lib
-SRCS=	subr_sbuf.c 
+LIB=		sbuf
+SHLIBDIR?= 	/lib
+SRCS=		subr_sbuf.c 
+
+SHLIB_MAJOR	= 6
+
+SYMBOL_MAPS=    ${.CURDIR}/Symbol.map
+VERSION_DEF=	${.CURDIR}/Version.def
 
 .PATH:	${.CURDIR}/../../sys/kern
 

lib/libsbuf/Symbol.map

@@ -0,0 +1,24 @@
+/*
+ * $FreeBSD$
+ */
+
+FBSD_1.2 {
+	sbuf_new;
+	sbuf_clear;
+	sbuf_setpos;
+	sbuf_bcat;
+	sbuf_bcpy;
+	sbuf_cat;
+	sbuf_cpy;
+	sbuf_printf;
+	sbuf_vprintf;
+	sbuf_putc;
+	sbuf_set_drain;
+	sbuf_trim;
+	sbuf_error;
+	sbuf_finish;
+	sbuf_data;
+	sbuf_len;
+	sbuf_done;
+	sbuf_delete;
+};

lib/libsbuf/Version.def

@@ -0,0 +1,6 @@
+/*
+ * $FreeBSD$
+ */
+
+FBSD_1.2 {
+};