mention the copy-paste in ticket trick for LDAP

howto/retire-a-host.md

@@ -11,8 +11,8 @@
     (e.g. `fsn-node-01.torproject.org`) but could be auto-detected...
 
     TODO: cover physical machines
- 5. remove from LDAP with `ldapvi` (STEP 6 above) TODO: add to Fabric,
-    make sure you show the diff
+ 5. remove from LDAP with `ldapvi` (STEP 6 above), copy-paste it in
+    the ticket
  6. do one huge power-grep over all our source code, for example with
     unifolium that was: