Land rapid7#7037, db_export -f xml stack trace fix

Missed during the Rails upgrade.

Author: wvu

lib/msf/core/db_export.rb

@@ -125,15 +125,15 @@ def extract_host_entries
     @owned_hosts = []
     @hosts = myworkspace.hosts
     @hosts.each do |host|
-      if host.notes.find :first, :conditions => { :ntype => 'pro.system.compromise' }
+      if host.notes.where(ntype: 'pro.system.compromise').first
         @owned_hosts << host
       end
     end
   end
 
   # Extracts all events from a project, storing them in @events
   def extract_event_entries
-    @events = myworkspace.events.find :all, :order => 'created_at ASC'
+    @events = myworkspace.events.order('created_at ASC')
   end
 
   # Extracts all services from a project, storing them in @services