Add command line option to dump full configuration

Closes ytti#1588

bin/oxidized

@@ -4,7 +4,7 @@
 trap("INT") { exit } # sinatra will otherwise steal this from us
 
 begin
-  require 'oxidized/cli'
+  require_relative '../lib/oxidized/cli'
   Oxidized::CLI.new.run
 rescue => error
   warn "#{error}"

lib/oxidized/cli.rb

@@ -43,6 +43,11 @@ def parse_opts
       opts = Slop.new(:help => true) do
         on 'd', 'debug', 'turn on debugging'
         on 'daemonize',  'Daemonize/fork the process'
+        on 'show-exhaustive-config', 'output entire configuration, including defaults' do
+          asetus = Config.load
+          puts asetus.to_yaml asetus.cfg
+          Kernel.exit
+        end
         on 'v', 'version', 'show version' do
           puts Oxidized::VERSION_FULL
           Kernel.exit