when get-config-dir runs HOME=/. this means that any

keys/known_hosts that may have been set up in /root/.ssh config are
available.  this change prefix the curl command with HOME=/root
patch by andrew bezella <andrew@diatribes.org>

lib/get-config-dir-http

@@ -33,7 +33,7 @@ base=${file%%.*}
 
 # now download tarball of config space
 echo -n "Getting configuration space tarball from $FAI_CONFIG_SRC ..."
-curl -f -O --retry 3 $FAI_CONFIG_SRC
+HOME=/root curl -f -O --retry 3 $FAI_CONFIG_SRC
 ret=$?
 if [ $? -eq 0 ]; then
     echo "done"