fix: dev: [host] we don't always have ``kal-shlib`` when executing this

We want to be able to take these script maybe independently, in
this light, we can't use ``kal-shlib``'s facilities.

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

precise/host/hooks/install.d/70-0k.sh

@@ -92,7 +92,7 @@ fi
 
     if [ -d "/srv/charm-store" ]; then
         if [ -L "/srv/charm-store" ]; then
-            info "Already have a valid /srv/charm-store"
+            echo "Already have a valid /srv/charm-store"
         elif [ -L "/srv/charm-store/0k-charms" ]; then
             mv /srv/charm-store{,.old} &&
                 mv /srv/charm-store.old/0k-charms /srv/charm-store &&