Disable building of pkg_install by default

If people still want to have pkg_install they can specify WITH_PKGTOOLS when building world

UPDATING

@@ -31,6 +31,10 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW:
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20130709:
+	pkg_install has been disconnected from the build if you really need it
+	you should add WITH_PKGTOOLS in your src.conf(5).
+
 20130709:
 	Most of network statistics structures were changed to be able
 	keep 64-bits counters. Thus all tools, that work with networking

tools/build/options/WITH_PKGTOOLS

@@ -1,4 +1,4 @@
 .\" $FreeBSD$
-Set to not build
+Set to build
 .Xr pkg_add 8
 and related programs.