F15 fix: remove /sbin/init before copying over it

If it's a symlink, we'll copy the file into the symlink, and then we'll
likely remove the target of the symlink (../bin/systemd) in cleanup, and
then we have no init. Boo.

share/runtime-postinstall.tmpl

@@ -31,19 +31,20 @@ move etc/yum.repos.d etc/anaconda.repos.d
 ## misc_tree_modifications()
 %if int(product.version) > 15:
     ## Configure systemd to start anaconda
-    symlink /sbin/init init
     remove etc/systemd/system/default.target
     symlink /lib/systemd/system/anaconda.target etc/systemd/system/default.target
     append bin/login "#!/bin/bash"
     append bin/login "exec -l /bin/bash"
 %else:
     ## Set up loader as init
+    remove sbin/init
     copy usr/${libdir}/anaconda/init sbin/init
     symlink init sbin/halt
     symlink init sbin/poweroff
     symlink init sbin/reboot
     remove sbin/runlevel sbin/shutdown sbin/telinit
 %endif
+symlink /sbin/init init
 install ${configdir}/network etc/sysconfig
 append etc/resolv.conf ""