call to_hash on 'options' in Pry.start().

lib/pry/hooks.rb

@@ -23,7 +23,6 @@ class Pry
       hash.each do |k, v|
         instance.add_hook(k, nil, v)
       end
-
       instance
     end
 

lib/pry/pry_class.rb

@@ -111,6 +111,7 @@ class Pry
   #   Pry.start(Object.new, :input => MyInput.new)
   def self.start(target=nil, options={})
     return if ENV['DISABLE_PRY']
+    options = options.to_hash
 
     if in_critical_section?
       output.puts "ERROR: Pry started inside Pry."