Land #10422, conditionally require in msfdb_ws

Dependency loading requirements for msfdb_ws were causing a long wait
time for the help option.

msfdb_ws

@@ -3,10 +3,6 @@
 #
 # Starts the HTTP DB Service interface
 
-
-require 'pathname'
-require Pathname.new(__FILE__).realpath.expand_path.parent.join('config', 'boot')
-require 'msf/core/db_manager/http/http_db_manager_service'
 require 'optparse'
 
 class HelpError < StandardError; end
@@ -17,6 +13,12 @@ class SwitchError < StandardError
   end
 end
 
+def require_deps
+  require 'pathname'
+  require Pathname.new(__FILE__).realpath.expand_path.parent.join('config', 'boot')
+  require 'msf/core/db_manager/http/http_db_manager_service'
+end
+
 def parse_args(args)
   opts = {}
   opt = OptionParser.new
@@ -71,6 +73,7 @@ end
 begin
   opts = parse_args(ARGV)
   raise SwitchError.new("certificate file must be specified when using -s") if opts[:ssl] && (opts[:ssl_cert].nil?)
+  require_deps
   HttpDBManagerService.new.start(:Port => opts[:port],
                                  :Host => opts[:interface],
                                  :ssl => opts[:ssl],