Actually fix sentinel when using authentication.

Author: djanowski

lib/redis/client.rb

@@ -366,6 +366,8 @@ def ensure_connected
     end
 
     def _parse_options(options)
+      return options if options[:_parsed]
+
       defaults = DEFAULTS.dup
       options = options.dup
 
@@ -450,6 +452,8 @@ def _parse_options(options)
         end
       end
 
+      options[:_parsed] = true
+
       options
     end
 
@@ -485,6 +489,7 @@ def initialize(options)
           super(options)
 
           @sentinels = @options.delete(:sentinels).dup
+          @options.delete(:password)
           @role = @options.fetch(:role, "master").to_s
           @master = @options[:host]
         end

test/sentinel_test.rb

@@ -119,6 +119,10 @@ def test_sentinel_with_auth
     }
 
     sentinel = {
+      :auth => lambda do |pass|
+        commands[:s1] << ["auth", pass]
+        "-ERR unknown command 'auth'"
+      end,
       :sentinel => lambda do |command, *args|
         commands[:s1] << [command, *args]
         ["127.0.0.1", "6382"]