Add debug around on-save on-load

gall-app/urbit/app/browsermanager.hoon

@@ -12,8 +12,8 @@
 --
 ^-  agent:gall
 =<
-=*  state   :-  %0 
-                :* 
+=*  state   :-  %0
+                :*
                   [%access count=0]
                 ==
 |_  bol=bowl:gall
@@ -62,8 +62,12 @@
     =/  action  !<(action:browsermanager vase)
     [(handle-action action) this]
   ==
-++  on-save  on-save:def
-++  on-load  on-load:def
+++  on-save
+  ~&  'on-save'
+  on-save:def
+++  on-load
+  ~&  'on-load'
+  on-load:def
 ++  on-leave  on-leave:def
 ++  on-peek   on-peek:def
 ++  on-fail   on-fail:def