Add missing command for previous commit.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11327 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/createfiles.xml

@@ -59,6 +59,7 @@ done
 ln -svf /tools/include/blkid    /usr/include
 ln -svf /tools/include/libmount /usr/include
 ln -svf /tools/include/uuid     /usr/include
+install -vdm755 /usr/lib/pkgconfig
 for pc in blkid mount uuid
 do
     sed 's@tools@usr@g' /tools/lib/pkgconfig/${pc}.pc \