fix warning about signature of respond_to? on 2.4

lib/pry/code.rb

@@ -338,7 +338,7 @@ class Pry
     undef =~
 
     # Check whether String responds to missing methods.
-    def respond_to_missing?(name, include_all = false)
+    def respond_to_missing?(name, include_all=false)
       ''.respond_to?(name, include_all)
     end
 

lib/pry/config/behavior.rb

@@ -186,8 +186,8 @@ module Pry::Config::Behavior
     end
   end
 
-  def respond_to_missing?(key, include_private=false)
-    key?(key) or @default.respond_to?(key) or super(key, include_private)
+  def respond_to_missing?(key, include_all=false)
+    key?(key) or @default.respond_to?(key) or super(key, include_all)
   end
 
 private

lib/pry/last_exception.rb

@@ -23,8 +23,8 @@ class Pry::LastException < BasicObject
     end
   end
 
-  def respond_to_missing?(name, include_private = false)
-    @e.respond_to?(name)
+  def respond_to_missing?(name, include_all=false)
+    @e.respond_to?(name, include_all)
   end
 
   #

lib/pry/method.rb

@@ -461,8 +461,8 @@ class Pry
 
     # @param [String, Symbol] method_name
     # @return [Boolean]
-    def respond_to?(method_name)
-      super or @method.respond_to?(method_name)
+    def respond_to?(method_name, include_all=false)
+      super or @method.respond_to?(method_name, include_all)
     end
 
     # Delegate any unknown calls to the wrapped method.

lib/pry/output.rb

@@ -35,8 +35,8 @@ class Pry::Output
     @boxed_io.__send__(name, *args, &block)
   end
 
-  def respond_to_missing?(*a)
-    @boxed_io.respond_to?(*a)
+  def respond_to_missing?(m, include_all=false)
+    @boxed_io.respond_to?(m, include_all)
   end
 
   def decolorize_maybe(str)

lib/pry/slop.rb

@@ -332,7 +332,7 @@ class Pry::Slop
   # Override this method so we can check if an option? method exists.
   #
   # Returns true if this option key exists in our list of options.
-  def respond_to_missing?(method_name, include_private = false)
+  def respond_to_missing?(method_name, include_all=false)
     options.any? { |o| o.key == method_name.to_s.chop } || super
   end
 

lib/pry/wrapped_module.rb

@@ -150,8 +150,8 @@ class Pry
       wrapped.send(method_name, *args, &block)
     end
 
-    def respond_to?(method_name)
-      super || wrapped.respond_to?(method_name)
+    def respond_to?(method_name, include_all=false)
+      super || wrapped.respond_to?(method_name, include_all)
     end
 
     # Retrieve the source location of a module. Return value is in same